I know too much. Somehow the ancient greek teacher talked me into taking it. I wonder if there is any ethics violation in an advisor advising his advisees to take his own class... It's a great way to convince the bosses that there is a lot of interest in your subject and thus you should continue to be employed, I suppose.
After all this time, I wouldn't be able to walk up to the ancient athenian murder speeches and understand them, but give me a dictionary and two days and I probably would be able to pick it all up again.
Envious? No, I pity the fool who prefers pumpkin pie over the other delicious options!