Never seen anyone steal baby formula outside a riot, because it's always locked up.

But yeah, I'm sure some people steal because they're hungry, but the people I saw steal when working grocery stole steaks, lobster, shrimp, eye drops, high-end hair products, and workers' hours. If someone was ever stealing out of need (fuck, even a single carbohydrate) they were slick enough about it not to get caught. But we tracked shrink, and could tell when something disappeared without account.