To those people in the front few rows who started whining almost as soon as the step show started, I invite you to join adulthood with the rest of us.  You knew the first part of the concert was going to be the step competition!  It said so on the ticket.  If you didn't want to see it, you could've gotten there later, instead of treating the men and women who were up there working their asses off like complete shit.  And later, when it HAD been going on for a long time...so what?  I don't care how long it took, I don't care how much you don't like step, your mom didn't teach you to treat other human beings that way.