Squirrels. I'm terrified of them. I don't know when I developed this fear and I don't know why.
One was living in between my apt. ceiling and the roof of building that didn't help my fear. I was always afraid that thing was going to fall through on top of me while I was sleeping. One time another invaded his/her space and they were fighting and making noises (at least I hoped that's what they were doing). That damn squirrel, had the nerve to sun bath on my damn patio when it was warm. After many complaints, they finally filled in its entrance.