TOILET PAPER | ENGLISH JOKE

Man: I'd like to buy some dog food.
Checkout Lady: Do you have a dog?
Man: Yes
Lady: Where is he?
Man: He's at home.
Lady: Sorry, I can't sell this dog food to you unless I see the Dog. Store Policy.
next day the man returns.
Man: I'd like to buy some cat food.
Lady: Do you have a cat?
Man: Yes.
Lady: Well... Where is he?
Man: He's at home.
Lady: Sorry, I can't sell this cat food to you unless I see the cat. Store Policy.
Next day the man returns.
Lady: What's in the sack?
Man: Put your hand inside.
Lady: Hmmm! It's warm and moist! What is it?
Man: I would like to buy some TOILET PAPER!