Hollywood Joke

So a guy goes to the circus. He's enjoying himself, when he notices an old, old man following the elephants around with a shovel and a garbage can, cleaning up their dung. He can't stop watching this tiny old guy struggle to drag the can around, stooped over and shaking, barely able to lift the shovel. At the end of the circus, he finds the man and says to him,"why don't you retire? " The man, stooped over turns up and looks at the man and says, "what, and give up show business?"