"I don't want to be a goat"

In our play we have a group of goats.  They are group of 5 year old boys and girls who sing "The Lonely Goatherd".  They had been doing a wonderful job at rehearsals until one particular rehearsal when one of the the little goats asked permission to sit in the front row with the "students".  Thinking nothing of it I allowed him to sit in the front row.  That was my mistake - the next day he came to rehearsal and refused to sit in the "goat" row, because he was a "student".  For the next three rehearsals he stated that he "did not want to be a goat".  He came in his goat costume, went on stage with the goats, and stood completely still during their song because he was not a goat and was not going to sing with the goats.  Finally on opening night something kicked in and he decided that it was ok to be a goat, but still told me that he looked funny.