One of the biggest changes in retail in recent years has been using self checkouts at big chain stores. Whether we have been haunted by the spectre of the unexpected item in the bagging area or indulged in the thrill of putting through our avocados as onions, scanning our own groceries is increasingly becoming part of our day-to-day lives. However, not everyone is willing to accept the new normal, even when it's the only option. When @tzipp69 shopped at a Walmart recently and realized that ther…