Results of 17,043 votes:
1.If he insists he paid his share of the rent/utilities, yet you know he's wrong, you've got a real problem on your hands. (via DoctorColonelAlfredEBellowsMD)
2.He'd be uncomfortably smooth and witty around your potential dates.
3.Probably end up with a lot of burn-marks around the apartment and have no chance of getting back your security deposit.