A reader was shopping at a Crystal grocery store on a windy day several months ago and came out to find a shopping cart had run into the side of his car, causing $1,600 in damage. He tried to get the store to pay for the damage but was told the business is self-insured and would not admit liability. The reader enlisted the help of the Minnesota attorney general's office but got the same response. The man said that a different grocery store, Aldi, requires a 25 cent deposit to unlock a cart from a corral and that this gives shoppers incentive to keep the parking lot free of rogue carts. Because the store he shopped at lacks a similar system, he feels the store was negligent. Should the store pay up?