When one comes up behind someones back and messes up their hair.

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.

The act of gaining some sort of element of surprise, and then unexpectly messing up a person's hair with one's hands.

When someone play with or touches your hair without your consent.

pleasuring someone with the ends or tips of ones hair on their neck and/or jaw line.

Forcibly cutting someone's hair without their consent.