Anatidaephopia is a fear that somewhere in the world there is a duck watching you.

The person believes that no matter where they are or what they are doing, a duck is watching them.

This results in a dry mouth, shortness of breath, muscle tension, hyperventilation, etc. The reality is though, there might be few to no people who suffer from this phobia. It was first named in a Far Side comic strip and was an exercise on how you can make any phobia sound real if you used greek terms for it.