The girl who quit just before heading to the mall...
...was the only rational one in the movie. I kept wondering why the main girl would risk her job and her dignity to prove something to a bunch of sorority bitches she didn't seem all that interested in anyway. I can see putting up with a few pranks, but breaking and entering (especially somewhere as personal as your job) was too much and not even worth it considering the reward was getting to live in a house with those girls. The risk simply wasn't worth the prize.
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