Once a while back, I very nearly committed that cardinal sin of throwing my DS down/across the room while playing Etrian Odyssey. The game was just so punishing, the experience so addictive, that I could not bring myself either to stop or to calm down. Pausing on the upswing, I thought better of it and instead wagged my finger at the game, like an old man angry at the damn kids who keep throwing their Frisbee on his lawn.
I don't normally get really emotional when playing games, and have never broken a console or controller in anger. That punishing difficulty really got my goat, but when push came to shove, I found myself unable to put it down.