@Madeleine: That doesn't help me, I've tried that. Meditation sometimes works. I've had a couple occasions where it didn't. When that doesn't work, the only thing that seems to get me out of it is an ability to vent my anger in some way and get a flow of positive energy from someone or something else. Most commonly has been my eldest brother, who has really bad anger issues(my anger issues are pretty much non-existent, as I mentioned this is a thing that has occurred so few times I could count it on one hand), so he tends to be really understanding of the whole thing.