Is It Rude to Not Return Your Grocery Cart?

People online are taking sides when it comes to returning your grocery cart. Some say leaving the cart in an empty parking spot is fine as long as an employee will collect it later. They argue that this gives employees something to do and helps ensure there are enough grocery store jobs. Others say not returning it to the proper place is rude and dangerous, as carts can roll away and hit cars. Most agree that if you have time, you should always return it out of courtesy to employees and other shoppers.