Warm and Moist

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 this. CHECKOUT LADY: Do you have a cat? MAN: Yes.
CHECKOUT LADY: Well...where is he? MAN: He's at home! CHECKOUT LADY: Sorry, I
can't sell this cat food to you unless I see your cat.
The next day the man returns.
CHECKOUT LADY: What's in the sack? MAN: Put your hand inside. CHECKOUT LADY:
Hmmm.It's warm and moist! What is it? MAN: I would like to buy some toilet
paper.