"Dobby is a bad elf!" Winky cried tearfully as Dobby bounced around. He had gone into the Charms classroom, intent on cleaning it, only to bewitch the chairs to slide from under the students' feet when they went to sit down.

"Dobby was bored, Dobby wanted some fun." Dobby said with a grin.

"Dobby must punish himself, now! Winky would never do anything like that!" Winky cried.

"What if Dobby was to dare Winky?"

"Winky wouldn't do it! Winky is a good elf, Winky is loyal to Master Crouch."

Dobby just shook his head, his ears flapping soundlessly and left.