A man is sitting in a plane which is about to take-off , when another man with a dog occupies the empty seats alongside. The dog sits in the middle with a seat all to himself.The first man is looking quizzically at the dog when the second man explains that they work for the airline. The dog handler says to the first man Don't mind Rover he is a sniffer dog, the best there is, I'll show you once we get airborne, and I set him to work.Eventually, the plane takes off and when it levels out the handler says to the first manWatch this. He tells the dog"Rover, search". The dog jumps down, walks along the aisle to the back of the plane and sits next to a woman for a few seconds, it then returns to its seat and puts one paw on the handlersarm. He says "Good boy", and turns to the first man and says,That woman is in possession of marijuana, so I'm making a note ofthis, and the seat number, for the police who will apprehend her on arrival. Fantastic! replies the first man. Once again the man says to the dog "Rover search".This time he sent the dog down to the front of their plane.The dogsniffs about,sits down beside a man for a few seconds, returns to its seat and placesboth paws on the handlers arm He says "Good boy", and turns to the first man and says, That man is carrying cocaine, so again, I'm making a note of this, and theseat number. That's marvellous, I never seen anything like it! says the first man. Once again he sends the dog to search the aisles. He goes up and down the plane and after a while sits down next to someone, and then comes racing back, jumps up onto the seat and this time craps all over the place.The first man is surprised and disgusted by this, and asks What the bloody hell is going on? The handler replies "Oh god, He's just found a bomb!!