I about a quarter mile from an HEB.  I've seen several rotund ones here steal shopping carts with very little or even nothing in them.  I would always notice them down by the bus stop.  I'd just assumed before they were from people carrying groceries to the bus and I'm sure some are but a lot of them are just where fatasses stop into the HEB for a candy bar and a soda and then steal the grocery cart to use as a walker on their way to the bus stop.