Ya, the people who insist they are normal really annoy me. I mean how the hell do they know they're mental state or beliefs or behavior coincide with more than 50% of the world's population! well, there really isn't a normal state that would describe more than 50% of the population. I could go on but I won't.
As for you-are-so-like-my-prof insane, this is a special category reserved for people who somethings (about 70% of the time) says things that doesn't make sense the first time around because they speak entirely in differentials, integrals and eigen vectors. If you don't know what they are or how horrid they can become, you are lucky. Stupid things are all from high-level math and they give me no end of headaches (I doing Engineering Science, for some strange reason we need to learn more math than the math majors. Stupid soul sucking program!)
Ohhh! lots of languages! that's so cool and awesome. I wish I knew more languages especially Japanese cause I really want to go there and well actually experience the culture. Really traveling the world would be so much fun and ya linguist/archaeologist would be awesome fodder for stories with all the cool things you are likely to see. Is that what you are studying?
I'll stop now, in fear of sounding too pushy or creepy or what have you and scaring/creeping you out.