The only thing I really like about Halloween is that it gives equal time to witches. We scarcely even think about witches the rest of the year, and we certainly don't give them the respect they deserve. But during the last days of October, we can scarcely think about anything else. Even the latest mega-celebrity can't hope to keep our attention, unless she sails into the headlines on a broomstick. This annual descent into the dark ages has its unfortunate aspects, including the plague of plastic pumpkins, dime store ghosts, and all trick or treaters over the age of five. But at least it reminds us that witches, like angels, are everywhere. It's unfortunate that our present-day image of witches comes almost entirely from "The Wizard of Oz." The wicked witch in that movie gave the whole profession a bad name with her silly costumes, anti-social attitudes, and outrageous overacting. At Halloween, the fake witches on sale in the stores always have the same black robes, the same pointed