dont do this if you dont want to loose a finger or two and possible a NUT
when you clean a wheel bearing and you think its cool to take air hose to blow off the grease so you shoot the air across the bearing and spin them up to like 50,000 rpm and then the bearing falls apart and the outter cage tears into yours fingers that was holding the bearing and the one ball bearing fly out and hit your nad at 175 mph that not a good day :metal:

and the one ball bearing fly out and hit your nad at 175 mph that not a good day :metal:
:haha: Sorry, I couldn't resist, that had to hurt :haha:

experience talking?
seriously though, my old boss did that & lost an eye.

"OUCH" :hh: