In my game I added some premade sims as roomates just to see how would they behave. For example Morgyn Ember has the public affection quirk. He brings home a different girl every single night. He also...
I think I hate the violin players the most. Had 3 of them in the dorm once when one of my sims went to uni - ugh. My sim had to use the roommate stop that command a lot!