Other mistake: A group of students poses as painters so they can investigate shady doings at A.J. Arno's home. They had made a work order which included their dormitory's phone number. When Arno calls the number, he asks, "Is this 247-8824?" A student says "Yes" but the number on the phone dial is "471249624."
Continuity mistake: Professor Quigley shows his students a grocery list, and then demonstrates how a computer can be used to make a phone call to the grocer's and place the order by playing a recorded message. However, the grocery items named on the recording do not match the items on the list.