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Most street signs exist to keep order. The ones installed by ‘A Sign of Humour,’ however, are there to bring a little innocent disorder into the world. Behind these convincing parodies is an anonymous Glasgow-based guerrilla artist who specializes in humorous signs and public installations. By placing them in ordinary streets, parks, and other public spaces, the artist hopes to encourage people to look up from their phones, notice their surroundings, and encounter something unexpected during their day. The works borrow the familiar visual language of official road and safety signage: bold lettering, warning triangles, prohibition symbols, and simple pictograms.

A closer look, however, reveals instructions that become increasingly ridiculous. Drivers are advised to watch out for squirrels behind the wheel, pedestrians are warned about extraterrestrial districts, and visitors may discover that a perfectly ordinary park has somehow become an “AI-free zone.” Although the signs are designed to make people smile, their subjects are not limited to harmless absurdity. Some play with technology, politics, popular culture, and contemporary habits. The artist has acknowledged comparisons to Banksy but considers his own approach distinct, using seemingly official signage to interrupt people’s routines and encourage them to pay closer attention to the city around them.

Scroll down to explore these funny unofficial additions to Scotland’s public spaces. You can also follow the artist’s socials to keep up with the latest installations, and, of course, let us know which sign would make you stop for a second look.

More info: asignofhumour.com | Instagram

#1

An absurd sign on a metal fence giving a public service notice about being rich and entitled.

A Sign of Humour Report

Chrystina Sumpter
Community Member
3 months ago

Or courtesy.

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    #2

    Absurd signs: A One Way sign with song lyrics about being found below it.

    A Sign of Humour Report

    Beth Wheeler
    Community Member
    3 months ago

    Blonde. LOL

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    #3

    Absurd sign on a metal railing, stating a public service notice about not doing racist things.

    A Sign of Humour Report

    Julie S
    Community Member
    Premium
    3 months ago

    Exactly

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    #4

    Absurd signs: A street sign with an upward arrow, reminding people to appreciate the architecture on a city street.

    A Sign of Humour Report

    Schnitzel
    Community Member
    3 months ago

    But then I can't madly stare at my phone!

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    #5

    Absurd signs: An AI-free zone sign on a park gate, discouraging AI-powered filters for selfies.

    A Sign of Humour Report

    Glix Drap
    Community Member
    Premium
    3 months ago

    I was going to take my dog Al to the park but was banned from doing so.

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    #6

    An absurd sign on a metal gate warning about Glaswegians giving directions.

    A Sign of Humour Report

    Paul C.
    Community Member
    3 months ago

    I once confidently directed a man about a mile to his hotel, in a town I'd lived all my life. Problem was that the hotel was about 100 metres away across a park. I woke up and realised this at about two the next morning.

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    #7

    A split image shows two absurd signs: one warning about toupees in high winds, and another about cleaning up after elephant pets.

    A Sign of Humour Report

    Ola Pe
    Community Member
    3 months ago

    Is it only me, or is this Trump?

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    #8

    Absurd signs: A street sign warning against asking Scotsmen what they wear under their kilt.

    A Sign of Humour Report

    Apatheist
    Community Member
    3 months ago

    "What's worn under the kilt?" "Nothing, it's all in perfect working order!"

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    #9

    An absurd sign on a wall warning of spinosauruses hiding, with a wooden fence behind.

    A Sign of Humour Report

    Mike Rodrick
    Community Member
    3 months ago

    This comment is hidden. Click here to view.

    Cops?

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    #10

    Absurd signs: A sign with a warning about a road cone on a statue.

    A Sign of Humour Report

    Chrystina Sumpter
    Community Member
    3 months ago

    Another one where I want to know the story behind it.

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    #11

    A brilliant absurd sign warning of Time Lords appearing, next to a blue police box.

    A Sign of Humour Report

    Seán Baron
    Community Member
    Premium
    3 months ago

    Well, 4 of them have been Scottish.

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    #12

    Absurd signs: A roundabout sign with song lyrics underneath about spinning right round like a record.

    A Sign of Humour Report

    Julie S
    Community Member
    Premium
    3 months ago

    Now I have this stuck in my head.

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    #13

    An absurd sign with a torn section and a warning not to let pets chew on road signs.

    A Sign of Humour Report

    Chrystina Sumpter
    Community Member
    3 months ago

    I really want to know what kind of pet did that.

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    #14

    A split image features an official EV charging station on the left and an absurd sign about not re-animating monsters on the right.

    A Sign of Humour Report

    Julie S
    Community Member
    Premium
    3 months ago

    This comment is hidden. Click here to view.

    Carry on Screaming. Screenshot...311f1.jpeg Screenshot_2026-07-22-11-44-36-531-1-6a609f77311f1.jpeg

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    #15

    An absurd sign encouraging sharing space with people, bikes, horses, and sea monsters.

    A Sign of Humour Report

    ChakatBlackstar
    Community Member
    3 months ago

    Nessie and the Kraken have the ability to melt the walkway to travel through it? No wonder they're so hard to find.

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    Never miss a story that brings joy to the world. Add us on Google

    #16

    Absurd signs: Road signs in Balmaha, one warns drivers to drive slowly for red squirrels.

    A Sign of Humour Report

    Andrew Keir
    Community Member
    3 months ago

    BalmaHaHa ?

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    #17

    Absurd signs: A funny sign about outrunning zombies next to a river.

    A Sign of Humour Report

    Jeff Hunt
    Community Member
    3 months ago

    First rule of Zombieland: Cardio.

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    #18

    Absurd signs: A funny sign prohibiting reindeer from being tethered to a bike stand.

    A Sign of Humour Report

    Inservio Smurf
    Community Member
    3 months ago

    typo : left out the word 'to'

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    #19

    An absurd sign beneath a low bridge warning giraffes to find an alternative route.

    A Sign of Humour Report

    WindySwede
    Community Member
    3 months ago

    even Lisa the Rainbow Giraffe? 🍁🍂🍃🦒

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    #20

    Absurd signs: A brilliant artist created a street sign pointing to D.I.S.C.O.

    A Sign of Humour Report

    Lazy Panda 2
    Community Member
    3 months ago

    Whooooah!

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    #21

    Absurd sign with a gorilla knitting, warning about guerrilla knitting on the street, near a red post box.

    A Sign of Humour Report

    Julie S
    Community Member
    Premium
    3 months ago (edited)

    Cute

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    #22

    An absurd CCTV warning sign with a humorous Scottish phrase, next to a painted building column.

    A Sign of Humour Report

    Auntriarch
    Community Member
    3 months ago

    Yep, that would work on me

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    #23

    Absurd signs: A warning sign depicting a person chased by midges, for seventy-five miles.

    A Sign of Humour Report

    Mike Rodrick
    Community Member
    3 months ago

    At 1st glance I saw midgets!

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    #24

    Absurd signs: A street pole with a sign warning about Victorian time-travellers outside a chocolate shop.

    A Sign of Humour Report

    Lazy Panda 2
    Community Member
    3 months ago

    Are they ahead or behind?

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    #25

    A brilliantly absurd sign showing a sun behind a rain cloud, with text encouraging optimism.

    A Sign of Humour Report

    Gary
    Community Member
    3 months ago

    If life seems jolly rotten. There's something you've forgotten...

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    #26

    Absurd signs: A nuclear power station sign featuring Godzilla, warning of rampages during decommissioning.

    A Sign of Humour Report

    Janice Sanz
    Community Member
    2 months ago

    Caution!!

    #27

    Absurd signs: A brilliant artist created a road sign warning about a hidden dip with a humorous addition.

    A Sign of Humour Report

    Julie S
    Community Member
    Premium
    3 months ago

    Mmmmm salsa

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    #28

    Absurd sign for Clyde Tunnel, asking to hold breath, overlooking a busy tunnel entrance.

    A Sign of Humour Report

    BookFanatic
    Community Member
    3 months ago

    Reminds me of our tour guide in Ireland. We were entering a tunnel and he told all the couples "it's Irish tradition to kiss the entirety of the tunnel to ensure a long and loving relationship." We got out of the tunnel, he looked around and said "Jaysus Christ yer a bunch o' idiots. I made that up!"

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    #29

    Absurd signs: A sign near a pond with a pink flamingo, asking not to share kebabs with flamingos.

    A Sign of Humour Report

    Seán Baron
    Community Member
    Premium
    3 months ago

    Aww, but they really like them.

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    #30

    Absurd signs: A brilliant artist created a sign warning about security walruses on patrol in water.

    A Sign of Humour Report

    Whiskers
    Community Member
    3 months ago

    Walruses! I’d loove to see walruses!

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    #31

    Absurd signs: A humorous sign prohibiting robots from recharging at an EV charging point.

    A Sign of Humour Report

    Polite Interceptor
    Community Member
    3 months ago

    Upvote for Bender

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    #32

    Absurd sign warning of giant squid in a lake, with green trees and water in the background.

    A Sign of Humour Report

    LadyKing
    Community Member
    3 months ago

    Only occasionally? Where is it kept at other times? Does that place also have a sign??

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    #33

    Absurd sign cautioning against unaccompanied giraffes wandering in Shettleston, with a giraffe mural in the background.

    A Sign of Humour Report

    Ghostchaplain16
    Community Member
    Premium
    3 months ago

    I tried using a leash. She just keeps seeing how far she can toss me!

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    #34

    Absurd signs: A warning sign about low flying Scotsmen with a soccer player silhouette near a stadium.

    A Sign of Humour Report

    Beady El
    Community Member
    Premium
    3 months ago

    Looks like the minister of silly walks

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    #35

    An absurd sign on a metal fence for District G9 stating No Humans Allowed with a stylized figure.

    A Sign of Humour Report

    Kelly H. Wilder
    Community Member
    3 months ago

    Is this Scotland's version of Area 51?

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    #36

    Absurd signs: A brilliant artist created a traffic light sign using billiard balls for the lights.

    A Sign of Humour Report

    Raymond Horton
    Community Member
    2 months ago

    I can sink that!

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    #37

    Absurd signs: A brilliant artist created a road sign depicting Darth Vader crossing the street.

    A Sign of Humour Report

    Whiskers
    Community Member
    3 months ago

    Burglars on pedestrian crossing???

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