Well, the buyer was a total dreamer and time waster. They loved the car, I could tell, and wanted time to think about it so were going to call me back mid-week. But later the same day they called and said they definitely wanted it. I gave them my word I would keep it, and they did likewise to say the car is bought.
A few days later - after I had cancelled the advert and called all the other interested parties to say it had gone - they left me a voicemail with an excuse and saying they weren't buying it after all.
Trying to stay positive