When I was a cart pusher I could spend all day in the lot. What really sucked is when they changed from the lightweight plastic basket carts to the XL metal carts. Could push plastic basket carts all day and I would smoke cigarettes by my car in the downtime. XL metal carts ruined that job. Also never cared if they were corralled. You have to push them out the corral and with the XL metal carts they were heavy and hard to maneuver.