MAN: I'd like to buy some dog food.
CHECKOUT LADY: Do you have a dog?
MAN: Yes.
CHECKOUT LADY: Where is he?
MAN: He's at home.
CHECKOUT LADY: I'm sorry, I can't sell this dog food to you unless I see the dog. Store policy.
The next day, the man returns.
MAN: I'd like to buy some cat food...