While doing groceries on the other side of the city I saw a friend from high school in front of the entrance. We said hello to each other and were just about to go our own way, as another friend from uni walks up to us and says hi. We all know each other, so I thought the two of them were meeting. But we all were thinging that about the others and after a short while we found out that none of us had made any plans of meeting. It was pure coincidence that we all three were there at the same time. Only happend once to me.