“go away..” its gone!

What you did was great but it is obvious you did it out of anger and you are still riding on that energy. Sure you can say you don’t feel angry etc, but I can see clearly that’s what it is. The way you’re describing this event is clearly from a wounded soul and unclear mind. When a person feels grand/powerful, it’s not always a positive feeling, even though it feels like that (hence why so many power crazed people in the world). I respect what you did and I am pleased that you have this moment of feeling powerful, and I sincerely hope that it lasts for you. However, the chances are, that feeling could very well manifest itself into another feeling and probably a low to counterpart the high. Because I strongly suspect that the REAL problem is not this guy at all, but something else inside of you which you are not addressing, so the mechanism you are using right now to further ignore the real problem is to swat this man away like a fly. The truth is, if this man really was ‘nothing’ to you, and he could really be simply swatted away, you wouldn’t even have noticed that you had done it, and you certainly wouldn’t be talking about it either, or, for that matter, gaining any power at all from the event.
It’s rarely as simple as ‘go away – it’s gone’ if that was the case no-one would ever be miserable.