1. When you smoke a bowl through a vape, then go to clear it out only to discover that there was never anything packed in the first place.
2. A placebo-bowl.

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.