What’s The Biggest Secret That You’ve Kept Hidden From Family And Friends, And Why?

I believe that at times it's better to keep things hidden, as to not hurt family and friends. I also believe that as time goes on, something you may have thought was worth keeping hidden would be better off having been told originally. For me, I was arrested for simple possession when I was much younger. There is nothing on my record from it, and so I figured it was going to be easy to hide. I turned my life around after that, so didn't see the need to share and hurt my parents, and girlfriend (now wife). 10+ years later, I still haven't told anyone, but as time goes on I wonder if I would have been better off just telling them at the time, and at this point wonder if it's something worth bringing up or just leaving it behind me.