When one is not interested in something until someone else shows interest.

For instance; My gradmother would feed her dog, and he wouldn't want anything to do with the food until you went to take it away. Hence "Grandma's Dog."

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.