I guess I don't really need to explain this one all that much. I've had a few pretty nasty conditions in the past. Almost stopped breathing once, injured my back and couldn't feel my legs for a while, even got trench foot once as the result of a bet. All these things were treated before they really got bad, so there's been no real lasting adverse effect. But that's beside the point, I wanna know: what's been the worst for you, broken bones, infectious disease, or something else?