"I don't get to do that often enough. It's rather unbecoming of a Prior, you know, not to mention that I must order replacement shirts at the Abbey's expense, and there's really no comfortable explanation for repeatedly shredded clothing."

And it wouldn't do to go turning the Shepherds' minds towards dalliances. Aziraphael has enough visitors clearly not in search of spiritual guidance to be classed as a Companion, were folks to look at it that way.