These are supposedly actual signs that have appeared at various locations.

Sign in an office: “We shoot every 3rd salesman, and the 2nd one just left.”

Sign in a veterinary’s waiting room: “Be back in 5 minutes. Sit! Stay!”

Sign on music teachers’ door: “Out Chopin.”

Sign at the electic company: “We would be delighted if you send in your bill. However, if you don’t, you will be.”

Sign in beauty shop window: “Dye now!”

Sign on a garbage truck: “We’ve got what it takes to take what you’ve got.”

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.”

Sign in a bowling alley: “Please be quiet. We need to hear a pin drop.”