Well, my friends and I found an old Nalgene bottle sitting around, and, being the pranksters we are, decided we should try to break it. Someone bet me $5 that I couldn't break it. I've already run it over with my car, but that only warped it. I was thinking I would need to exert more force over a smaller surface area, like jab it with a stick or a high heeled shoe, etc. Any ideas?