<p>Ooh, other stuff:</p>
<p>My chemistry teacher spent an entire class talking about the most effective ways to kill a cat (his favourite was putting it in a box with a small hole, waiting for it to stick its head out, then <em>BLAM</em> shotgun). He’s a big guy, kind of outdoorsy, and always tells stories about hunting bears/other stuff. Also, he managed to cave in the ceiling of his dining room by standing above it. :/</p>
<p>I used to have a French teacher who was the easiest person in the world to get off topic. She told us her life story, brought in waffle irons to do cooking demonstrations, taught people how to ballroom dance, taught etiquette, talked about proper form for dating, and so on. While she was supposed to be teaching French. ;)</p>