I don't want to be a Ballerina

Today was our first day of our Dance for Tots class. Grace was so excited to wear her "ballerina" outfit. I was anticipating a breakdown when we got there and she realized that I was not going into the classroom with her. But Miss Christine was super friendly and Grace warmed up very quickly. They all grabbed a piece of rope and Miss Christine led them into the classroom. Before I knew it Grace was the best in the class, she was pointing her toes and sitting very good on her tape (she told me that). Of course, that couldn't last forever. With about 10 minutes left in class a little boy began to break down, that began the domino effect and Grace was soon screaming for her Mama. The teacher asked if she was just tired. I don't think so. Grace kept telling me she wanted to go home and needed to go back to bed. So we lasted about 20 minutes. I keep mentioning how excited I am to see what she learns next week and she keeps telling me "I don't want to be a ballerina!" Currently...she is in bed. She just wouldn't stop crying/screaming!