When to draw the line?

A ridiculous event took place last night. As you may know, I have biological kids that dance. As high school kids, they sacrifice a majority of their fee time to study their art. However, between the training, performing are the moms. This is the third time my kid has been bullied by an adult at the studio. How on earth is that fair? As with many situations, I am left amazed at the behavior of the adults. Choices, how you interact, when you call for a meeting, the format of the meeting it all has unintended consequences. Stop, breath and THINK before you act.