To make a statement with no evidence to backup your claim and then ignore requests for evidence until it goes away. Also allows an option if caught out, to pretend you never said it. If evidence is produced, ignore it until it goes away.

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.