From House MD S01E10
Student: Dr. House, you are reading a comic book
House: And you're calling attention to your bosom by wearing a low-cut top...Oh I'm sorry. I thought we were having a "state the obvious contest. I'm competitive by nature.
Stundent: I thought you were supposed to be listening to our patient histories
House: No, I'm supposed to be teaching you. If I can do that without listening, more power to me.