Owner-operator, who claimed to run hard, never needing to come home since he's driving with his girlfriend, ended up sitting for days on end in hotels, requesting cash advances and barely working. Became extremely rude, threatening to drop the trailer if we don't issue a cash advance, even though he had not done any loads for over a week. Told him to return all equipment to our office, which he said he will do, but we found out he dropped the trailer in a motel parking lot in Florida and disappeared.