This is the 3rd time this has happened to me at the Walmart on Coors in ABQ. You pay for your purchases and the clerk bags them and spins the bags away from you, then hands 1 or 2 bags, but the 2nd or 3rd bag is hidden from sight, the clerk goes on to the next customer, and you walk away without some of your items.
Today I lost 4 bananas and 2 packs of gum. The solution is to bring your own bag, put it on top of the turntable, and force them keep the items in sight at times.
I don't know if this is individual thievery or store thievery. In any case, be careful.