Oh, I'm definitely aware of that too, although I still need to practice it more and more. I suppose it would also help if I didn't always associate anger with hatred, violence, revenge, and sadism, as I can see how anger can still exist without those things. And aside from letting it roll off my shoulders, I noticed that it also helps to question why I'm angry and what would I hope not to get myself into.
And like other things again, it's sometimes far easier said than done, but it has certainly kept me out of trouble, which is more than great since I don't want to spend any part of my life in prison, and/or just make a complete ass of myself, or get my ass kicked, or have my life cut short. And well, anger can make us do stupid things too.
But so far, it thankfully isn't an issue for me right now. I'm just doing my own thing, laying low, and minding my own business on my spare time, while doing my best to not start shit with others whenever I'm out and about. That seems to work most of the time anyway.