Great sense of humor (follow the link for more signs from the same store). Reminds me of the signs in a Shakey's Pizza place where we used to go when I was a kid. Two I remember:
"We have a deal with the bank. The bank doesn't make pizza, and we don't take checks."
"If you would like to use your plate for your cigarette ashes, please ask the waiter to serve your pizza in the ashtray"