When I was in high school biology we had to dissect a frog. Part of the lesson was to break his jaw and, of course, cut him open. This allowed me to stick my finger through the back of him and operate his mouth.

I built a small top hat out of paper and cane out of a paper clip. We sang and danced every time the teacher turned her back.

I learned nothing in biology other than that I knew all the words to that song.