An out of town coworker was working an event at Mandalay Bay, and when she returned to her room at the Luxor, she was greeted by a homeless crack head occupying her room.
When she walked in the room he was hiding behind her door with the lights off, so she actually entered the room and the door closed behind her before she found out she wasn’t alone. Her luggage had been rummaged and items of a personal nature were missing, so it seems as though he came and went at least once.
Apparently this is a common enough occurrence that hotel security wasn’t too concerned. I got this first hand, and it was rumored that this happened to a second employee working the same show, staying at the Bay.
Crime is out of control in this city right now, tell your loved ones to keep their heads on swivels.