Christine O'Donnell has a new ad in which she not only distances herself from witchcraft, but also boldly (and baldly) asserts, "I am you." Really? So politicians are now inserting themselves not only into my living room but into my very psyche? Obviously she meant that she is like me or shares my values (which she doesn't), but the difference between simile and metaphor is significant here. I'm spending the morning repairing my boundaries.