[noodlesUK]

> I doubt the relationship between the rate of shoplifting and ease of shoplifting is anywhere close to linear.

I'm sure you're right. I suspect that there are massive variations from shop location to shop location, even within a region. I also suspect there are different kinds of shoplifting. I remember hearing a friend who is not the kind of person to just pocket an item and leave, bragging about ringing up protein powder from a bulk dispenser as flour to save money. That kind of behaviour is definitely going to be hard to model.

[bombcar]

There's a number of people who openly admit to "self checkout discounts" as part of the "payment" for doing the work for the store.