Discrete maths - What a joke, talks about how to study and what you are ment to do for half the lecture, it really sounds like he's specifically talking to the fobs :p.
Higher maths - wasn't bad, he's probably warming us up for the harder stuff :)
I agree, they have, or should have heaps of experience so that they know what kind of hair you have, and how it flows, so then they can plan how to cut it
I think like most guys, I wear jeans and a t-shirt, and shoes or thongs if i'm lazy or it's pretty warm.
For more dressy stuff, jeans and a t-shirt layered on a buttoned up shirt.
That's what I normally wear :p