Lecture jokes are the worst. Especially if they put a cartoon on the slide, and then try to explain the slide.
“Ok, so this humorous cat, he’s saying he really hates Mondays. And today is Monday, I know we’d all rather be lounging like that cat. See his funny little face? And his whiskers… they’re all curled and… and the ears… But we’re here instead, thinking about orbital dynamics. And on that topic…”
