These are supposedly actual signs that have appeared at various locations across the United States and rest of the world.
Sign in an Acapulco Hotel:
"The manager has personally passed all the water served here."
Sign in a Norwegian lounge:
"Ladies are requested not to have children in the bar."
Sign on a door to a psychiatric ward:
"Please do not disturb further."
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!!!
blast the weekend folks!!