It doesn't really count as a rage quit. But there was one occasion back in the day, I was really upset after getting into a fight with my brother... and I decided to take it out on one of my PC games. I threw the game disc down the hall, it hit a wall and cracked. I liked that game too, poor Ultimate Ride... It didn't deserve that. Of course, no one ever forgot the one time I broke my game.
It's funny how you can work so hard to always keep yourself in line, but no one ever forgets the mistakes you made, no matter how small.