I hate it when people feel the need to resort to violence to end an argument, they were insulted or because they felt like it or they felt the other person deserved it. Since I was Thirteen (that's when I woke up to myself & decided I beyond this kind of thuggery [not being able to move for a day helped that decision a little too]) , I have never struck anyone unless it was in self defence.
If I am attacked though, I feel who ever attacks me has temporarily given up every right as a human being they may have had. I will fight back and I will fight back dirty. Every chance I get, I'll go for the nuts (never been attacked by a female), I don't aim punches at the head, I aim them at the throat or a "finger whip" to the eyes. If I'm put in a choke hold, no fancy flip over the shoulder for me, I'll dig my fingers into the kneepit, lift the leg & fall backwards with force (gotta be careful with that one, it can easily become lethal or you could get covered in puke). If I can get my hands on something to be used as a weapon I won't hesitate. If my attacker has facial piercings...well one night, in King George Square, I gave some punk Three smokes for him & his Two friends, he then demanded the rest of the packet and when I refused he grabed me by the throat. Well, this stupid punk had heaps of rings in his eyebrows, ears, lips &, I suspect, nipples, not only that but a fair few of them were attached by a chain, which dissapeared down his shirt (hence my suspicion of nipple piercing). Well I guess I don't need to explain what happened next, I'll just say he was lucky neither of his lips were attached to the chain.
There's alot of other tricks I have used to come out on top, and not being very big (there's only 60kg worth of me), I've used my attackers weight against them on many occasion.
Okay I'm a slow typer, & as a consequence, am getting fed up with key bashing, so I'll close up now by saying, the best way to avoid a random attack is to not look like a victim, keep your head up, don't mumble when spoken to by a "ruffian" and if you can see that they're going try & intimidate you, make first contact, come up to them with a "Hey, how's it goin'" & even a friendly slap across the shoulder, it should really knock them off track. I've walked through some of the "toughest" (such as I was told) areas, straight through the middle of groups having quarrels & not been touched but have seen people crossing a road to avoid a certain group and having the group lay chase like a pack of carnivores.
I do my best to avoid conflicts, and one of the best ways I have found, is not to look like I am.