A person that is so dumb, they cannot get hurt. They have an uncanny ability to survive situations on stupidity alone. A person of any real intelligence would have been injured or killed because they would have taken time to think or hesitated due to logic.
This person never gets so much as a scratch, but lacks any real superpower.

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.