Compared to all the brave heroes in this thread, I have actually done some boringly lame things:
1- Ran after a wanna be thief, in Brooklyn, with freezing temperatures outside and I had no shoes on, luckily cops were around the corner by the time I almost caught him and they saw me running and stopped him. Only to see himn being let go because cops said he will be released later anyway since all he had done was steal some shoes from our 4 room hall
2- Saw a car jump a curb, miss my car by inches (I was in passing left lane) and hit the car in the other lane (right lane) almost head on. I was about to pass that car and was gonna be seriously hurt if I had done so but something stopped me right before the accident, this from a guy who regularly does 10-15 MPH over most speed limits. Saw the offending car's door open, beer bottles came slidding down (all empty) and a young mexican guy ran out. I ran after him in rage (because I was mad why he did all this and then ran away) and caught him with help from another passerby
3- Once went to sleep (involuntarilly off course) and rolled the car over 3 times (in the deep and wide median on a 2 lane highway in Nebraska). Car was totalled while me and my friend (who was not wearing a seatbelt and sleeping with seat resting backwards on passenger's side) walked away with barely any scratches. Off course this was not exactly a brave thing but really some experience though
4- When I was 18, got in the middle of a fight between two gangs (we were at the house of a gang leader who had beaten up one of the other gang's member a few hours ago)...somehow mr brother (2 years older), a friend of ours, and I ended up in the middle of 8-10 guys armed with baseball bats, heavy silver chains, hockeys and what not. I saw my brother get hit with a hockey stick, I went to save him, got hit with the chain twice (saw stars literally), still got up and punched a guy a few times who was coming at me with a baseball bat (thankfully he missed). Funny thing was when the fight ended, only we 3 got beat up while that gang leader from the house was standing behind a few of his servants. We were called wusses later because our little nephew went home (he was with us for some reason) and told on us. Next few weeks we spent at an aunt's house and away from Lahore
There are a few more experiences like that (but minor in nature) and oh how about all the cyber beatings I have given to those 'Other' guys