A man goes out one morning and sees a gorilla on his roof. so he looks in the Yellow Pages and sure enough, there's an ad for "gorilla removers". He calls the number, and the gorilla remover arrives with a ladder, a baseball bat, a shotgun and a mean old pit bull terrier.

"What are you going to do?" the homeowner asks.

"I'm going to put this ladder up against the roof, then I'm going to go up there and knock the gorilla off the roof with this baseball bat. When the gorilla falls off, the pit bull is trained to grab his testicles and not let it go. The gorilla will then be subdued enough for me to put him in the cage in the back of the van."

"What's the shotgun for?" asks the homeowner.

"If the gorilla knocks me off the roof, please shoot the dog!"