Travelling is an exciting prospect, whether it's a short or long-haul flight. There's the gruelling dash through security before finding your gate, then finally taking a seat on the aircraft to relax. But with safety on board comes a lot of restrictions, like tightening your seatbelt and not smoking during the trip. Now for those with weak bladders, waiting for the seatbelt sign to switch off can often feel like an eternity. But one American Airlines pilot recently revealed what happens if