Each semester Jeff teaches a unit on the brain. Above you can see the brain he took to class today. This allows him to point out various parts as he describes their functions to the class. At some point in his lecture, he takes a small piece of brain on the tip of his knife and says, "Mmmmm. It looks good enough to eat." And then he pops it in his mouth.
There are always one or two students who gasp before he assures them that it is made of jell-o.