When you got the cheese and use it to make sandwhiches in The Legend Of Zelda.
The original creator of the legacy can be found here on Wagintrowl youtube channel

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.