Bathroom graffiti is one of the greatest of all gifts, as it keeps you entertained while you do boring things. Like piss. If similarly boring-but-necessary activities had analgous entertainment opportunities, the world would be saner.
In that spirit, enjoy this collection of bathroom graffiti from across the world. Shout out to the folks at the Bathroom Graffiti Project for collecting so much excellent work. Leave your mark on the world.