I wouldn't say impact drill, but to me it's like driving down the hwy, seeing an oncoming car in the other lane and thinking, "if I just jerked the wheel, it would be catastrophic". It's never something I'd actually entertain, but the thought has certainly flew by. I think there's an actual term for that. But yea, that's how I feel about just destroying drives in a data center. This guy was just nuts enough to do it.