Back in the day, when I had a Jaguar game system, I was playing Alien vs Predator with full cheats enabled. I was playing as the colonial marine, and was in a huge room with tons of aliens and fuel barrels. Just sat there holding the fire button down rotating 360, trashing everything. Explosions all over the place, and I'm thinking "Man, is this neat looking or what" After it's done, I turn around and my GF is lying on the floor grinding her teeth, smashing her head into the floor, and just not seeming to be in a good state. I didn't think about it at the time, but I figured out later she had a seizure from the video game............Scary as hell. Then again, she almost got me killed a few times, so maybe it wouldn't have been a bad idea to just let her go on............But I digress.