For many people Halloween means ghosts, goblins and ghouls in fact anything that is scary and the scarier the better! There is no shortage of movies and TV shows all ready to scare you, of course some more than others.
Even young children want to scare the pants off of their friends. There are many great costumes that would suit this purpose including dressing up as a one of the Dementors from Harry Potter or becoming an evil Jester or a walking tree!