Coincidências / Coincidences

Sometimes I think about if something happens in our life is really coincidence or made of destiny.
Today, I was going back to my home by bus, when this fucking one's stopped a little bit before the actual bus stop. Of course, it's a boring situation but it's OK.
I was walking in the street when a pick-up sounded its horn. It was my colleague worked with me in Mabe until 2005. He is working there until now and it was a great surprise to see him again. We have a chat for around 15 minutes.
And I ask to myself (again): "Does coincidences really happen??"