I work at a rollerskating rink, and I know what everyones talking about when you say problems with customers that drive you crazy. I'm a floor-guard, and we stress that parents don't carry children while on skates. If they fall, they can fall atop of their kid. Its happened many times, and Ive had parents blow up in my face when telling them, and 5 mins laser they slip or lose their balance and fall on the kid, hurting them severely. This happened recently with a man holding his infant!! I know what your talking about, you have to put up with the ignorant in weird ways sometimes.