The act of moving in the opposite direction of everyone else using the aisle. While they can be spotted in any type of aisle, they are frequently seen on airlines during loading and deplaning.

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.