Barrister coincidence

I was the instructing Solicitor in a case in Cornwall concerning a claim by a teacher for injury caused by her slipping on a dangerous path. I acted for the Defendant. The case proceeded to trial in the mid-1980s, the Claimant won and, as her injuries were particularly unusual, the case was reported in the specialist law reports for personal injury cases. The Barrister for the Claimant did well. Some five [5] years later I was attending a hearing in the Court of Appeal. The Strand, London. I happened to be discussing with a colleague the case from the 1980s, mentioned above. My case was delayed so I went to look for a case to watch. At the first open court, I looked in and saw a Barrister rise to his feet to address the Judge and it was the same Barrister who acted in the 1980s case - who I had never thought of again since the 1980s case, let alone seen him. A coincidence?