Telephone coincidences

I phoned a Bob Sherwood, almost a colleague, at the Castlewellan Forest office during working hours. Someone else answered the phone and it took some time for Bob to answer. We talked for a while about forestry business and then, when I was about to hang up he asked how I knew to find him at this number. I laughed and said "But that's your office number." There was a bit of a silence before he admitted he was in a pub in Dundrum. From memory I knew a friend's number in Belfast. I phoned him. His wife answered the phone. I asked, " Can I speak to David. She said, "But he's dead!" I said, "Oh dear, I'm afraid I must have got the wrong number. I was phoning someone called David Magill." She said, "This is David Magill's number, but he died last week." I said, "He can't have done, I spoke to him only a couple of days ago." It was a different David Magill with a rather similar telephone number.