Yeah, I get pissed off when I lose/die. But it's only minor unless I get beaten by a 5 year old, dumb luck or a blatant cheater. Or lag. It's the cause of about 65% of my deaths in Team Fortress 2.
Once, after I got sniped by someone all the way on the other side of the map, I hit my computer monitor. It screwed up the colours, but, then, I hit it again, and it was fine.
Once, after I got sniped by someone all the way on the other side of the map, I hit my computer monitor. It screwed up the colours, but, then, I hit it again, and it was fine.