I never cheated in a game, not even in real life:), and one day I was playing counter-strike too and that day I had quite an above-the-normal luck in that round and I head-shot almost all of the other team (it feels good when luck comes to you doesn't it?), when I was accused of cheating.

At first I even had quite a laugh about that, because I had never cheated before, and was quite funny being accused of doing so. But later, everyone was against me, so I had to start letting myself get killed by someone so the others could see that "someone actually killed me" at the corner of the screen, and reduce their tempers a little bit.

It's an unfortunate situation but once you get used to it.. The best is to ignore.