The first thing to establish with a prospective roommate is that the person is not a barking moonbat. Otherwise you could end up dealing with someone like blogger Cameron Scott at the San Franfreakshow Comical:
I recently got a new housemate. One day, I noticed the laundry room smelled strange and chemical: My housemate had done laundry, and had purchased a mainstream brand of laundry detergent. I was torn: Do I tell him what detergent he can use to wash his own clothes?
I just made up my mind: Yes. A new study, published online this week in Air Quality, Atmosphere and Health, found that the air released through the vent while a dryer handles a load washed with the top-selling scented liquid laundry detergent and a scented dryer sheet contains [arf arf arf] volatile organic compounds [arf arf arf] carcinogens [arf arf arf] toxic emissions [arf arf arf] dryer emissions are utterly unregulated.
Don’t worry, eco-warriors. I’m sure the EPA is looking into those unregulated dryer emissions.
On a tip from Travis.