In the days before self-exploding terrorists we were passing through the Channel Tunnel with our labradors and UK security insisted on glove-testing the dogs for explosives, which seemed a bit over the top to us. I remember that one lab bared her teeth at the glove-tester and the other just farted, but we all survived, and when we arrived at the French border post we slipped past the Gendarme who was taking a nap. Happy days!