Being angry is a sin. But before that it should be called a disease. A sickness of the mind and body. It fucks you up because there is so much stress involved. Your hair turns grey, headaches are constant, you can't fall asleep, it clouds your judgement and turns you a massive bitch that nobody wants to be around.
A childish bitch to be exact because anyone that cannot control their anger, probably also can't control other emotions as well. So everything is a mess.
You're a grownup with infantile maturity. How many are too ashamed to admit it? There's no reason to be. We can all see it. In others as well as ourselves. There is a reason why when you get into conflicts and grow angry, you tend to cry as well. It's more than one emotion acting out.
Mostly, it's distress because you feel attacked.
I love to think that I'm in control of my emotions at all times and can handle clashes without weeping. Pfft! If only. I usually have to cut off contact before my resolves falters and reveals the big baby that wants to bawl.