I have had a few moments, my megadrive controller has taken a beating, and i've been known to rip the telephone wire out of the wall when it's playing up.
My finest hour was playing Total Annihilation. I had just got it, and started playing, and got miles into the campaign. Hadn't bothered to save. Anyway there was this mission where I had to capture a nuclear silo on an island, guarded to the hilt. I spent just over three hours building, killing, and clearing the area. Eventually it was safe to walk my commander across.
I got him onto the island, and as he got close my navy decided to, for no reason, open fire on the silo. Cue me frantically trying to stop them, but it was too late, and I failed the mission. I felt my anger boiling up inside. Then, Windows 98 decided that it had had enough and that a BSOD was in order. All those hours' work... gone.
I picked up my base unit and slammed it into the wall. HARD. Then kicked, and kicked, and kept going.
When I had calmed down, it wouldn't turn on. Turns out in that thirty seconds of red mist, i'd managed to kill the motherboard, hard drive, CD drive, and PSU, as well as leaving the case screwed up. £500 worth of damage.