These are supposedly actual signs or notices that have appeared at various locations.
Notice in a field: THE FARMER ALLOWS WALKERS TO CROSS THE FIELD FOR FREE, BUT THE BULL CHARGES
Message on a leaflet: IF YOU CANNOT READ, THIS LEAFLET WILL TELL YOU HOW TO GET LESSONS
Sign on a repair shop door: WE CAN REPAIR ANYTHING. (PLEASE KNOCK HARD ON THE DOOR - THE BELL DOESN'T WORK)
Sign at Norfolk farm gate: BEWARE! I SHOOT EVERY TENTH TRESPASSER AND THE NINTH ONE HAS JUST LEFT
Seen during a conference: FOR ANYONE WHO HAS CHILDREN AND DOESN'T KNOW IT, THERE IS A DAY CARE ON THE FIRST FLOOR
Outside a photographer's studio: OUT TO LUNCH: IF NOT BACK BY FIVE,OUT FOR DINNER ALSO
Spotted in a safari park: ELEPHANTS PLEASE STAY IN YOUR CAR
In a Florida maternity ward: "No children allowed."
Seen in a health food store. "Shoplifters will be beaten over the head with an organic carrot"
"Children left unattended will be towed at parents expense."
I went to a little hole in the wall restaurant: the sign read: Women are not served here. You have to bring your own.
Sign in a veterinary's waiting room: "Be back in 5 minutes. Sit! Stay!"
Sign in beauty shop window: "Dye now!"
Sign at a computer store: "Out for a quick byte."
Sign on restaurant window: "Don't stand there and be hungry. Come in and get fed up."
In a New York medical building: "Mental Health Prevention Center"
On the freeway in Boston during a MAJOR transformation of the streets and bridges, etc: "Rome wasn't built in a day. If it was we would have hired their contractor."
A sign in front of an advertising agency in south superhighway, Philippines: "A BUSINESS WITH NO SIGN IS A SIGN OF NO BUSINESS"
A sign in front of a Macadamia Nut Factory in Hawaii: "Caution: Nuts crossing road."