Whew!! I thought you were saying he totally lost it over the car possibly being dented.
That wouldn't really be a big surprise, though, with a monstery MLCer. "She broke my toy!". Developmentally Deranged - great band name!
And that's how I channel my anger: dark humor. If my hackles are up over something Hoss or anyone else has done, another thing I do is woods walk. It is literally impossible for me to go into that environment with anger and expect to have any sort of satisfying experience where I might see animals, as they are repelled by aggression, so I have to check that at the door. By the time I return to my little civilization, I've usually forgotten what I was angry about or it's in perspective.
I used to be the type that would throw things or scream and cry, but not now. If I have some unheard thing I really need to express I just pretend he's on the other side of the table and go ahead and get it out. Something about pushing air with your lungs and getting it out of your head and imagination helps. Very little anger there anymore, but it was helpful early on.
Anger is normal but prolonged anger is not, especially if you don't have the MLCer in your face on a regular basis. It can become a crutch or hold us back if we let it. If I'm sitting around being mad about something Hoss did three years ago, that has more to do with me than him, as he is not in my face continuing to do it. When those emotions come up it's usually a sign to me that I need to ask myself what I'm getting out of holding on to that - is it helping me procrastinate on making a decision, or doing something forward-moving in my life? Am I just bored (this is the answer more often than not) and have nothing else to think about? Is it because I miss him and this is my brain's way of trying to protect my heart from remembering the good things?