When someone, usually over the age of 85, rides a bicycle and gets their nutsack stuck in the bicycle chain. It usually results in a painful yet hilarious removal of the scrotal skin from the oiled bike chain.

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.