[Riverdance]

At the Waterbury District Event the other week, there was a team (I'm not sure which in particular as I was in the stands at the time, or else I would credit them specifically) who passed out hair ties in all of the pits. It served as very positive reinforcement of safety guidelines, as it was not pushy/rude and did not invade personal space, but did remind everyone who walked into the pits that their hair should be tied back if it's not short enough to stay out of the way on its own. This is probably the best way to do it, as I'm assuming that most people with long hair who don't tie it back are only doing so because they forgot hair ties or forgot altogether about the issue of their hair in the midst of all the robot craziness!