Well, there's that classic old joke about George W. Bush in a restaurant asking the waitress for a quickie. He is very persistent that he wants a quickie and eventually she slaps him in disgust. As she walks away, his secret service bodyguard leans over and says, "Pardon me, sir, but it's actually pronounced 'quiche'".

Another ancient one is about the tramp who goes up to a large house one day and knocks on the door. He asks the lady who answers the door if she has any small jobs he can do in exchange for a meal. She is very charitable and agrees to give him a meal, some spare clothes and some money if he will paint the porch with the pink paint she gives him. Two hours later he knocks on the door again and tells the lady that the job is done, "...but it's not actually a porch, it's a Lamborghini."