I had an ill-tempered taxi driver when I was discharged from hospital following my hip operation. When the hospital staff said they would call me a cab, I didn't immediately realise they meant it would be on their account. With the benefit of hindsight, I suspect the driver had it in mind to charge me cash and get paid by the account. After several reluctantly answered questions, the surly git conceded he was being fully paid by the hospital. It was a jolt to the system as it represented my re-entry into the real world after several days of being waited on by the nursing staff.