I was having problems with acid reflux and went for an upper GI test, where they watch with an xray camera as you swallow barium. Anway, so we start and the person running the equipment, says something like, "Wow, what the heck is wrong with your lungs?", as the live image came up on his screen in a shocked and horrified voice. So my saracastic self, replied, "Nothing, why?" Anyway, it was pretty funny, maybe you had to be there.