Personally I think they done it because they may have thought it was a blessing from the gods
The procedure that a person usually uses when identifying three-dimensional objects is Haptic Perception. This kind of perception involves the identification of an object through touch and exploratory procedure. The achievement of perception is through exploring the surfaces of the object which involves the spatial features.
Answer:
You tell the costumer to stop. Then, you check all their pockets and make a body check. If you find something, report it to police. There's usually a cop or guard at stores like target. If you don't find anything, then you just tell them THANK YOU FOR YOUR COOPERATION. HAVE A NICE DAY. That's it.