Other members of staff include the dumpy Herbology teacher and Head of Hufflepuff House Professor Sprout, Professor Flitwick, the tiny and excitable Charms teacher, and Head of Ravenclaw House, the soporific History of Magic teacher, Professor Binns, a ghost who does not seem to have noticed his own death; and Madam Hooch, the Quidditch coach, who is strict, but a considerate and methodical teacher. The poltergeist Peeves wanders around the castle causing trouble wherever he can.