Something that happens to me...Every so often. Is a scenario involving me and one or (usually) more idiots, the type that nearly drives you off the road and then threatens to fuck you up if you so much as blink at them funny afterwards.

This happened to me today, while I was cycling home from school, 2 idiots on 1 bike driving like drunken monkeys.
They very nearly rammed me, after which I told them to keep their eyes out for fellow human beings.

This resulted in the guy riding on the back jumping off, punching me on the shoulder, quite nearly made me fall off my bike and jump in front of me, asking me if I'd like him to smack me around.

And this is where my problem arises

Let's get one thing straight first, I hate these people. In my eyes they're nothing but a cancer to society and anyone that's ever pulled shit like this should be rounded up and all have their eyelids torn off.

This is also why I very, very rarely actually retaliate against these guys, even though I could've whipped out my keycord in less then a second and give the guy some shiny new skull fractures.
Problem with this though is that there's this thing called the "Law" which would probably go after me.

Some guy in the street intervened, after which I got back on my bike and just cycled on.

But I can never shake these things, I feel like I should've punched this guy, even though I may not be able to keep myself from crushing his throat once he's on the ground.

What can I do with this? Should I continue my usual practice of always just walking away? Or should I just mess someone up for a change? Aslong as I don't kill them, that is.
I'm just sick and tired of these fools pulling stunts like this, people always tell me that the strongest man is the one capable of just walking away and not lower himself to their levels, but I'm kinda tired of that, it always feels like some weak excuse to let yourself get run over.