I do wonder about some people. I usually wear a pentacle although you generally can't see it. One hot summer though I was on the tube in London and wearing a black tee shirt and it was on view. As I was going up the escalator at Kensington, a woman coming down suddenly leaned over face to face with me as she passed and hissed 'HELL'!!! And I said, 'And which direction are you going in now?' :))