Just got screwed by my co-sup for 1 1/2 hour. I heard that he's known to scold students. After that, I chatted someone who has been screwed by him before, found out that it was excatly the same things! Things like "I'm a little worried", "It seems to be that you don't really understand", "After this friday, we'll see what you can do, maybe you can move to some other areas, like system."... etc...