"Samhainophobia". Apparently it's a real phobia, an irrational fear of Halloween. Me, I've got filthylittlebeggarphobia, an irrational fear of costumed rugrats showing up at my door and demanding "treats" consisting of simple carbohyrates and trans fats in that eerie, high-pitched little voice that they have. In years gone by, I would issue the command "Release The Hounds", who would then run the little monsters off. With the dogs all dead, I'm now reduced to commanding "Release The Kittehs", which doesn't seem to have the same salutory effect.
Samhainophobia is an intense and persistent fear of Halloween that can
cause panic attacks in sufferers. Other relevant phobias for this time
of year: wiccaphobia (fear of witches), phasmophobia (fear of ghosts),
and coimetrophobia (fear of cemeteries).
Read more at: http://www.huffingtonpost.com/2009/10/30/the-history-of-halloween_n_321021.html