Dear friend Regan White asks that question on her great blog, visit http://www.regansrants.com/.
I can't believe she took my seahorse! I had visions of Aquaman and my Avon toothbrush, circa three years old, but alas a new moniker must be found.
I do however love the idea of recognizing that there are always dementors amongst us. I'm not in for labelling, however it does reduce the stress of thinking you can reason with them. Who would want to be friends with a dementor? Only another dementor!