We and our trusted partners use technology such as cookies on our site to personalize content and ads, provide social media features, and analyze our traffic. You can read more about it and change your preferences here.
"Children should be seen and not heard" Glasses slamming down on a glass table, and glass cutting boards. (My mom married an alcoholic.) That sound of the metal chalk holder meeting the chalkboard momentarily. Also when the chalk was getting low and there was the building up of anxiety not knowing when you would hear that screech.