A person that everytime you confront them with something shady they did their response is bringing up something ridiculous that has nothing to do with what your confronting them about & its usually something from years ago.

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.