A few months ago, a woman stopped me, pointed to the jetway, and asked if the bathroom was "there." How odd, I thought, as I pointed out where the bathroom in the terminal was.
A moment later, I saw the bathroom sign with a diagonal arrow which did look like it was pointing to the jetway at CLT concourse B near the yellow restaurant near the far end of the concourse. It was like a sign on roads pointing to a turn and is sometimes mistaken for pointing a turn to a driveway immediately next to the sign.