Er, twice I think, I was 15, had half a bottle of vodka, passed out, my gf was with me, woke up much later to find out i'd stop breathing for ages, had been declared clinically dead, but then I started breathing again and I was fine. It was mid winter, temperature was below zero and had affected my asthma and thus had an attack, stopped breathing etc. Either way, still go out drinking regardless and i'm definitely not dead.
Second time I did the idiotic thing of crossing a road without looking, some huge lorry was speeding down this narrow road and my mate literaly had to jump out and knock me to the ground.
Edit: Had lots of other mishaps however, never broken a bone though, fractured a rib in a moshpit though. My 6 foot 6 friend thought it'd be funny to pick me up and just chuck me in, needless to say, it hurt.
Oh actually there was this one time when I was camping in Germany and this mental german guy started beating me and my friend up with a baseball bat, that was scary as hell.