Marketing In High Traffic Areas

I snapped this at a gas station which has high trucker use. It's a crappy photo, taken quickly for fear a man would enter or exit the restroom, but in case you've never seen such a rest stop...

The display of men's mags is placed right outside the men's room, covering part of the doorway, to inspire an impulse purchase. However, it is accompanied by a sign reading, "Magazines must be purchased before taken in the restrooms. Thank You."