My disabled grandfather rented a scooter while staying at Cosmopolitan. The concierge who handled the rental failed to include the battery charger for the scooter. The scooter ran out of "juice" at another casino, stranding my grandfather. He obtained a scooter from that hotel, and when I telephoned the Cosmopolitan to tell them their scooter was abandoned, disabled and left at another property, the responding concierge told me, "It's not my problem. I'm too busy to call the scooter company to come pick it up," and hung up on me.