Acceptable: Roommates who aren't neat freaks, but help keep the place tidy.
Negotiable: Roommate who isn't a neat person and refuses to help clean but instead buys the dorm suit paper goods and cleaning supplies.
Unacceptable: Roommate who isn't a neat person and refuses to clean up her dishes so they sit in the sink for 3 weeks over Christmas break and end up infested with maggots.
True story.
unacceptable : catching a roommate wackin his pud. twice. and the second time taking MY calculus book to cover himself.