If they weren't horsepeople, or specifically, Arabian people, they probably didn't notice. In fact he got loose in the halter class and it took 10 minutes to catch him. As far as handling stallions don't ever turn your back on them and don't ever forget that they are stallions. It's when those rules are forgotten that people get hurt or killed. I'v trained now for 17yrs and seen some terriable things with stallions and handled some of the best tempered studs around.
Studs are nothing to fool with.