A Lady boards a plane in Spain and duly takes her seat for the flight back to London, She notices that the man in the next seat has a dog with him and asks him if dogs were permitted?
The man replied that he was an undercover police officer and that once airborne the dog would start searching for drugs, etc.
Sure enough once the plane took off the dog started running around sniffing the passengers. Stopping at one woman the dog returned and put one paw on the officer who said to the lady sat next to him "You see that woman over there, she has cocaine".
The dog again ran off sniffing before returning and putting two paws on the officers lap. "What does that mean", asks the Lady? "Well, her in seat 35A has ecstasy in her bag," he replied whilst giving the dog a treat and sending him back to work.
The dog spends a little time sniffing a man at the front of the plane before running back jumping on the officers lap and doing one almighty SHIT. "Dirty dog", said the Lady, "what does that mean?" The officer replied "You see that bloke up the front, well he has a bomb".