Make no mistake, living with roommates can be fun, but it's not all singing into hairbrushes while you drive each other to get abortions. Personalities can clash, as can eating disorders and hygiene preferences. If you're new to roommate life, these refrigerator and, more importantly, bathroom flowcharts can help you keep from assaulting each other with enraged face-bites. If you're at a point in your life when you no longer need roommates, enjoy these flowcharts for the nostalgia that you actually used to live like these animals. Seriously, we once caught athlete's foot from our own bathroom in a two-person apartment share.

Sources: Passive-Aggressive Notes