Comparative customs:

In front of flat in London:
"It is unlawful to allow your pets to foul
the footways by depositing excrement thereon."

In New York:
"Curb your dog."

A speed limit sign on Long Beach Island, New
Jersey: "Smile, You're on Radar!"

On a store front in Florida:
"Your one stop shop! Beer ammo and liquor.
Drive through open 24 hours!"

In a bathroom stall at a college athletic facility:
"Please place tampons and sanitary napkins
in trash receptacle. Do not flush down stool."

Seen in a State Park in California:

"Weather Station (A large sign with a Rock
hanging on a rope)
Check the Rock.
If it's wet, it's raining.
If it's moving, it's windy.
If you can't see it, it's foggy.
If rock is gone, it's a tornado."