We watched the old Sloss Furnaces episode of Ghost Adventures last night (by the way, not a great idea for the kids before bedtime). At one point in the show the host is talking to a local guy who was supposedly "slapped in the face by an unseen force."
A minute later, they interview the guy's friend who confirms that his buddy had a hand print on his face that was cold to the touch.
Kendall piped up, "Why was it a hand? If he got slapped by a horse, why wasn't there a hoof?"