It's well known Darren has an intellectual disability. Calling him "idiot" and "clown" is a little excessive, considering he physically can't help it. Should Rupp Arena staff talk to him and say "Just dance, no interaction with other people or use of the rails"? Yes. Certainly. Maybe even tell him not to dance at all. It shouldn't have even got to this point where he risked injury of a child, but to call him an idiot and a clown is a little over the top. Rupp staff went through the correct measures, dealt with the situation accordingly.