"Human Anatomy" was written on the board when Chad entered just after the passing bell rang.
The teacher said, "Looks like we have a volunteer, Jethro, for your anatomy presentation. Chad, put your stuff down and come up to the front of the class. Jethro will use you to point out the various parts of anatomy. He was going to use my invisible man, but some senior pranksters have apparently taken it. No doubt it will turn up in a toilet stall or on top of the flagpole," she said testily.
Chad put his pack down, and went to the front of the class.
Jethro was holding a wooden pointer. He looked at Chad and frowned.
"Chad, could you please take off your clothing for my presentation?"
"All of it?" balked Chad.
"Jethro?" the teacher asked.
"Well, I guess everything but your underwear."
There were some catcalls from the class.