She walks into your classroom with an air of authority around her. She points to one classmate and gives them detention. Then she addresses the classroom

"I am Mrs. Trunchbull, headmistress of this school! Points her ridingcrop to the rules written on a chalkboard These are the rules you measly shrimps are to follow, but some refuse to do so! I will find out who!" She then points her ridingcrop to you You! Stand up straight and tell me your name!"