"I once saw someone skipping rocks and eating a sandwich on the beach. He tossed his sandwich in the water and bit the rock and froze and I just watched him die a little inside :(" funny things from Whisper
Talking 'bout street sign graffiti, Karen of Say No to Crack put together a short list of some really funny ones.LinkBut really, don't do 'em - graffiti is graffiti is graffiti. Maybe except this one: Soap Not Spray Cans: Reverse Graffiti Art.
These Jokes Are So Terrible, They’re Actually Funny