Really funny jokes-Spit in the Beer

A man walks into the club as well as orders the beer. He usually brought sufficient money for the single drink though. As he's celebration his beer, that was utterly expensive, he realizes how bad he has to go to the bathroom. Not wanting anyone to drink his expensive beer, he takes out the 3x5 note label as well as writes upon it, "I SPIT IN THIS BEER", as well as walks to the bathroom.

When he comes back about fifteen minutes later, there's an additional 3x5 note label next to his drink saying, "I SPIT IN IT TOO".