A Gorilla escapes from the Zoo and ends up on the Roof of a house nearby . The owner is clearly panicked and phones the Zoo to come and retrieve it . Ten minutes later a van and trailer pulls up and a Zoo keeper gets out with a ladder, baseball bat, shotgun and pit bull terrier. The house owner is puzzled and asks the zoo keeper how he is going to get the Gorilla down . " Well I'm going to use the ladder to get up on the roof , I'll use the baseball bat to knock the Gorilla off the roof the dog is trained to grab the Gorilla's private parts which then allows us to subdue it and load it into the trailer " . The Zoo keeper puts the ladder against the wall and hand the house owner the shotgun . " Why have you given me this" asks the man , " Well if the Gorilla happens to knock me off the roof the for god's sake please make sure you shoot the dog!"