I don't get angry. I get very irritated. It takes quite much for me to get irritated enough to need to vent it, but when I do, if possible, I lie down on my couch or bed, shut my eyes and breathe deeply. I lie until it passes, and then I'm usually fine. I am worried about what might happen the day someone pushes me over the edge and actually make me really angry though..
Very small pieces of my bottled-up rage have been released. I have given my older brother a solid hit in the face with my left hand (luckily I'm right handed, and I was much weaker then than I am now) while he really annoyed me at an airport (don't judge me, I was 8 years old or something like that.) I have kicked several people's asses when they annoyed me enough (most of this was before I learned to control myself properly though.) The last time I can recall being somewhat violent to someone was 4 years ago, when a person who is now a friend got me rather angry. I grabbed him and pushed him up against a wall, but luckily I could control myself and let him go after warning him of the consequences should he continue to annoy me. If I didn't control myself, Im worried of what might have happened. He wouldn't be looking pretty afterwards, I know that much.
But it's rare that I get that irritated. I think that in the last 4 years I have had the need to vent maybe 4 or 5 times.