Can some of these throws or take downs be very dangerous? I know guy that fell of bike and hurt himself. A cop here does a Ju Jitsu take down and now the guy cannot walk!!!! Not sure if it was take down or the guy had osteoporosis of the bones. Police officers threw guy to ground and he can never walk again. [ame="https://www.youtube.com/watch?v=ePY62BagJjE"]Indian man sues Alabama police after alleged assault - YouTube[/ame] Some one who has thin bones should not take Brazilian Jiu Jitsu ,Judo or Ju Jitsu ?It can break bones? My friend had an accident at work doing roofing and fell yes one story through the roof but he broke no bones strange.