Hic or Treat

Hic or Treat is the first half of the 7th episode of Season 11. It first aired on September 5, 2007 with Mr. Alwaysright.

Summary
Arthur is going to be a combination of Frankenstein and a dentist for Halloween, but no one thinks it's scary, and D.W. can't stop hicupping, so Arthur tries to scare her. Nothing works until Arthur puts on his costume.