...Broke the clutch slave cylinder.
BUT it's 34 years old so it probably just happened to break while I was driving it. Although I wasn't exactly as smooth as I could have been while driving it...
Anyway, it's a 1979 Prelude my friend just bought. Freaking crazy awesome car. Totally original, one owner, 67k miles. Even the radio still works, and it has FM! Oh, and I'm getting better at driving manual now, I didn't stall it once! I guess that's an achievement, for me at least. It sure is fun driving something so light with no power steering and almost no horsepower, haha.
Next week my friend should get some new seals in for the slave cylinder and I'll help him replace it, then it should be as good as new!