You know what I love? Handmade signage that overstates the importance of the message.
For example, today in the bathroom at work there was a new sign on the paper towel dispenser.
"Do NOT (double underline) pull on the paper while still in motion!!!" it shouted.
Shouldn't exclamation points of that quantity be limited to emergencies with more serious consequences than, say, jammed paper towels? Like, "Don't EVER (double underline) put your baby in the microwave!!!" or "Kristie, STOP eating Hostess cupcakes with the delicious waxy frosting IMMEDIATELY!!! (double underline)"
That's what I think.