Debauchery,
Actually many do find something very scary about the appearance of a Clown. Kids are taught that clowns are funny. Yet I'm not sure....I would think without such conditioning, show a baby or young child a clown, and the kid will FREAK.
Happy ? no, look at the facial expression of a clown, If they are acting funny, or happy, they give the impression of being manic with a facial expression always on the edge of tears.
, just my own feelings here of course