He drove himself to the first appointment with a friend's car, because his was in the shop. After the appointment he didn't remember that he had someone elses car, and walked all over the parking lot looking for his. He finally gave up, assumed his car had been stolen, and came back to my building for help.
He went to the cardiologist down the hall and told the receptionist his story. She called the police to report a stolen car. After interviewing Mr. Ford, the officer had him call a friend to come get him, but the one he called couldn't do so because Mr. Ford had his car, and couldn't make Mr. Ford understand that.
So the friend came in a cab to get my patient (who'd by now wandered back to my office). As they walked out to the friend's car, Mr. Ford said, "You know, I saw your car out there when I was looking for mine. I didn't know you had a doctor's appointment today, too.”
On Wednesday he called Mary to cancel an appointment for that day (which he didn’t have). He said he couldn’t come in because someone had stolen his car while he was at the doctor's 2 days ago. He later called in to see if he could get the appointment back, because the car had been “found” at a local repair shop (whose owner couldn’t figure out why it hadn’t been picked up for 5 days).
For the next 2 weeks we continued to get calls from Mr. Ford, asking if he could make an appointment now that he had his car back. He was politely reassured each time that he’d already been here.
I called and discussed things with his adult son, who took the car away while I notified the state about revoking his license. This only led to further (continuing to date) calls that someone has stolen his car. The local police aren't happy about this, either, and are now telling him to call me when he calls about the stolen car.
I can't say I blame them, either.