"The shopping cart is the ultimate litmus test for whether a person is capable of self-governing," as per a social media post ...

"I'm not getting my groceries into my car, getting my children into the car and then leaving them in the car to go return the cart ... single mom returning your shopping cart, you are prime ...

Costco's parking lot raises the stakes in the age-old shopping cart debate ... There’s no law that says you have to return your cart, but you should, per the unwritten rules of grocery store ...