How about this one, which I have seen:
NO SHOES, NO SHIRT, NO DOGS, NO SERVICE.
So, no one is allowed in the store without a couple of dogs?
Given NO SHOES, NO SHIRT, NO DOGS, NO SERVICE, the same customer would leave Fido in the car under a tree with the windows half-down. Or, if a hot day and no suitable tree, place an internet order, pick up, chow down (with a snack for Fido), and be on his way.