Come to think of it, the one Gamecube that was broken came from my friend that chews off his control sticks and kicks things when he gets pissed while playing. And he cusses a lot, too, but he's the funniest dude I've ever met. But that might have been part of the reason it broke. His controller broke, too, but that was an accident. He may have very well kicked the cube.
As for me, my Gamecube fell a hard three feet down onto cold tile and it still works splendidly.