I took grad-level orgo. It was a firehouse of knowledge. One of my professors was Phil Baran, who just got the MacArthur award (for his work in orgo)... Literally got hit by a car the day before the final, (went to the ER and everything, but no broken bones); came hobbling in to the exam. First time I ever failed a class in my life, but I came back the next year, and passed. I'm so glad I did it; though I don't actively use organic chemistry in my day-to-day I can go to conferences with organic chemistry and understand 90% of what they are saying.
