Alastor Moody Uses the Imperius Curse on Students

Alastor Moody shocks the class by announcing that he will demonstrate the Imperius Curse on each of them. Despite its illegal status, Moody insists that Dumbledore wants them to learn how to resist it. One by one, students perform odd actions under the curse, including Dean Thomas, Lavender Brown, and Neville Longbottom, none of whom can resist its effects.