Student: Mr. Schepard, can I go get my review book?
Mr. Schepard: Well, I'm not supposed to let you out of the room for anything except medical emergencies. Do you have to go to the bathroom?
Student: Sure.
Mr. Schepard: When that many people are crowded around a laptop, you must be watching porn.
*class laughs*
Student: It's a webcam.
Mr. Schepard: *Blinks twice* No comment.