I am paranoid and have a number of irrational fears. The one that people seem to get the biggest kick out of is my fear of telephones. It's pretty extreme. If I'm home alone, the ringers all get turned off. My heart rate goes up if I hear a telephone. Even cell phones do it, and this has lead to some awkward personal situations.
Somedays it's worse than others, but there's always a bit of suspicion in the back of my mind. I hate stupid phones.