It's a serious issue and I personally object to having to make (and enforce) rules which should be common sense, but understand in some cases it may have to be done.

It just seems that people growing up wrapped in cotton wool haven't had the chance to slightly hurt themselves enough times to develop common sense before being let loose on really dangerous equipment that can cause real injury to themselves and others. The flip side of this are older generations that simply don't understand the potential failure modes that can occur with modern technology.

A rules of "no connecting of batteries in the pits", should be as redundant as a rule stating "No sticking of body parts into a moving propellor".