This slip-up occurs during one of the many Halloween specials. This episode is where the staff of the school are serving the students as lunch in the cafeteria. It shows the lunch lady and Principal Skinner walking towards Bart, Lisa, and Mil house towards a large food grater. It shows the lunch lady and Skinner from back on and Skinner is wearing a black and yellow school apron. The next sceen as he says to Bart "I'll start by eating your shorts", he is shown just putting it on and tying it. Although he already had it on.