Another bizarre smuggling attempt was foiled by customs officials when they caught the culprit with his pants down, literally. He had two live pigeons inside them. They were discovered during a full body search.
Now here is where passengers really start to get risky with their carry-on possessions. Not only was this a grenade, but a military grade smoke canister. Since this could be taken as a real explosive, the airport could evacuate, leaving the perpetrator smoked with fines.