When someone is asked a question, but doesn't want to reveal the truth. Therefore reverts back to the common bullshit answer of to the "best of my knowledge". This phrase was made famous by Michael Jackson's doctor on Larry King

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.