Admittedly this is a different type of hypnosis that would be cool to have. The idea is that the listener is turned into a clown, or act like a clown. The clown can be really any clown, as long as it isn't like a murderer clown or something like that. Can be a circus clown, Harley Quinn from Batman, or even a sexual type of clown.
The hypnosis would either be categorized as a Transformation, Humiliation, or Behavioral File. Transformation for be turned into a clown, humiliation for just being humiliated but being proud of it, and behavioral for being more sillier in society. File can be temporary, or permanent to the listener.
Hope someone likes and will do the idea!