<p>What lidusha said. That said, it’s not as though you’ll just see roaches and mice all the time. I tended to kill one roach in my room a term, and chase out one mice in my room per school year. It wasn’t like I was hiding from them when I go to bed every night. It’s just unrealistic to think in old buildings in an old city, it’d be possible to get rid of them completely.</p>