In the Harry Potter movies Hermione always has the answers to the teachers question.  Well can she answer this question:  what's up with the short hair?  Sorry to disappoint my lovely lesbians but she is in fact not crossing over to the dark side lol.  But she has been attending Brown University for the past few years.  Yeah she's a know it all in real life!

A source says Watson didn’t shy away from class participation and often would “answer something in class and get it right,” calling the 21-year-old actress “really smart.” Unfortunately, this brought out the sophisticated wit and cinematic expertise of her Ivy League peers.
According to the source, her classmates “would respond [to her answer] with a quote from ‘Harry Potter.’” The most popular choice was “Three points for Gryffindor!”

I don't appreciate that kinda humor :) oh wait yes I do!