What are the odds?

Before the days of mass mobile phones I was called by a chap named John, who thought that because of my business I may be interested to buy a property he owned about 10 miles away, I was keen to view the property and took his details and arranged a viewing time of 0900 the following Friday. I was self employed at this time and had been shortlisted for a large contract which I had tendered for and was asked to attend a meeting on that Friday morning to finalise the deal. Unfortunately I had mislaid the contact details of John and was not able to inform him that I could not make the viewing on the arranged day, the property was vacant so John would have driven there wasting a whole morning waiting for me to arrive. I was unhappy that I could not contact him to cancel but with the lost scrap of paper containing his phone number there was little I could do. On the Thursday after finishing work I was in the Shower and my wife called up to tell me that a friends estranged wife was on the phone in some distress because she couldn't contact her husband and wondered if I knew where he was? I asked my wife to take her number and I would call her when I got out of the shower. When I made the call I hit a wrong digit, a man answered and I asked if Ann was there? he said "There is no Ann here" I said sorry, must be a wrong number, the man on the phone said "Is that you Graham? I said yes who are you? he said "it's John I'm meeting up with you tomorrow at 0900". I was stunned, I said to him I had lost his number but needed to postpone the viewing and that this was an incredible coincidence, one wrong digit led me to the very man I had been trying to locate all week. John then said this is even stranger still, the phone you called is the one at the property and I have only been here for two minutes to pick up some papers and was just heading back out the door when the phone rang.