[clairity]

you’re right about the goal, but not the mechanism. shoplifting is curtailed because greeting induces a sense of familiarity between the potential thief and greeter, thereby reducing the veil of anonymity, raising senses of guilt, reciprocity, and duty, while lowering the perception of potential success. it’s not foolproof of course, but helps at the margins. random receipt checks don’t do much other than impede flow.