" Imperio!”
Moody jerked his wand, and the spider rose onto two of its hind legs and went into what was unmistakably a tap dance.
Everyone was laughing — everyone except Moody.
“Think it’s funny, do you?” he growled. “You’d like it, would you, if I did it to you?”
The laughter died away almost instantly. "

― J.K. Rowling , Harry Potter and the Goblet of Fire (Harry Potter, #4)