George w bush was buying some groceries at the local supermarket. he went to pay at the register with his credit card when the cashieer asked for his id.

-excuse me darling, don't you know who I am?
-yeah, you are a client with no id, i can't process your shopping without it.
-look here sweetie, i am the president of the united states of america, i don't think i need an id to prove it.
-i'm sorry sr. but with no proof of identity you can't use a credit card in this store. but if you come up with something that really convinces me that you are george w bush, i'll let you go through without id.

so george w stands there for about five minutes and then exclaims

-Oh god, I can't come up with anything smart enough!
-Ok Mr. Bush here's your receipt, have a good day and thanks for shopping here.