That's damned funny - I think I'll try it sometime. Especially since the WM near my office, where I usually buy a few items for breakfast or lunch, has started inspecting every single person's bags on the way out. I find that to be not only a PITA and a waste of my time, but insulting. Soooo, I will be only too glad to waste their time in return.
The Walmarts near me have done away with the greeters/bag checkers. They now roam the store behind the cashiers, assisting customers.