The one that kicked my hiney was called "History of English." Sounds harmless enough, doesn't it? It was a trap. A dirty, evil trap. They crammed in more linguistics than anybody in his right mind could absorb in one course. And to top it off, we were all expected to become fluent in Old English, which is pretty close to old German. It was three things rolled up into one: Learn a language, dig deep into linguistuics and linguistic theory, and also learn the actual history of the language.

I barely survived. A lot of people didn't. It was an insane amount of stuff to cram into a single-semester course. I wouldn't recommend it to anybody, not even my worst enemy. (Don't people normally take multi-year courses to learn a language? Yeah, that's what I thought.)