When Joey is talking to D.J. at the end of the show, there is a hanger on the closet door behind them. The hanger keeps changing from behind the door to in front of the door.
Contrary to what everyone says, this is not the first time Joey punishes DJ. In "D.J. Tanner's Day Off", Joey catches DJ and Kimmy skipping school to get an autograph. As punishment, he takes DJ's autograph and takes the girls home.