My ex-boyfriend brewed his own beer. Don’t get me wrong – for the most part it was great. Except that when he drank too much of it (which was frequently) it made him incredibly gassy. One night I woke up at about 4 AM gagging on a rotten egg stench so thick and foul I could actually taste it in the back of my mouth. So I got up and, recognizing that he wasn’t exactly stinking me out of the bedroom on purpose, went downstairs to sleep on the couch. He woke me up 3 hours later wondering why I wasn’t in bed, and when I explained, he got offended that I would leave the bedroom in the middle of the night. Hellishly foul farts? Not necessarily a deal breaker. Getting angry at your girlfriend because your farts force her out of her own bed? Dealbreaker.