This comes straight out of the Readers Digest. I love corny jokes..
"Where is everybody?", the cowpoke asked.
"They've all gone to watch Brown Paper Pete hang", says a bystander.
"Why do they call him that?", asks the cowboy.
"Well, he always wears a brown paper hat, a brown paper shirt, and brown paper trousers. "
"Really,' says the cowboy, "and what are they hanging him for?"