Boarders make BOs crazy. It's not usually the other way around.
Even if they start out somewhat sane, the BO usually winds up bugnuts because of all the crazy, demanding, snobby, entitled boarders they have to deal with. Some of them even get out of horses all together.
Remember children, all
horse people are crazy. Yes, all of us. There isn't one of us that doesn't have a lunatic hiding just beneath the surface, giggling, wheezing, and frothing at the mouth.
The nonhorse BOs always confoozle me, though. Do they really think they'll just 'pick it up' as far as experience in feeding and care? That's not something I'd want to try and learn by the seat of my pants and trial by fire!