Learning handstand on Parallel Bars can be dangerous. Especially falling over on to the bars.
Typically it happens as in this video posted by the gymnast’s Mom.
… Nothing but bruises and damaged pride. Took me a couple of minutes to get my heart started again, but I survived, too. 5 minutes later he tried again, without mishap.
Mom – Chalk Bucket
It does seem most boys crash once or twice before finally learning how to save the handstand by pirouetting out.
We train handstands on the end of the parallel bars, finishing with a handspring. Safety on that skill is our highest priority with beginners. (Boys and girls train swing and press handstand.)