I rage occasionally in multiplayer, but I correct myself quickly by taking a deep breath or just reminding myself that everyone dies in video games. It's also important to not let yourself get too sucked in to the game, otherwise you'll start taking it way too seriously and flipping your shit every time you die. I've never gone to the point where I break or throw objects, although I slammed my desk once when I was riding in a helicopter in Battlefield 3 and our pilot crashed into an oil tank in Operation Firestorm, killing all five of us. Also, I think this is the best video game rage ever on the internet:
Just look at all the holes in his room! I also love how he blames the keyboard and monitor for him messing up.