No, in fact we had a Welsh gentleman travel down from Kanchanaburi yesterday, just to watch the match/support England with us.
That Cardiff experience was long before John's time.
I don't th I was going to say he'd never experienced football violence, but he was about 13 when he went to watch Bristol Rovers vs Swansea with a mate. You can probably guess the rest - he and his mate were half way down a road with Rovers fans marching from one end and Swansea fans marching from the other. They were literally rescued from no-man's land by the police. Of course, I don't know if that was just inter-city or international rivalry.
I do actually class the Welsh hatred as banter, but certainly there are many very anti-English Scots. I can assure you if it was Scotland, Wales, Northern Ireland or Eire in the final yesterday, we'd have been cheering them on unless the opposition was England

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Winning the Euros or the World Cup is a massive ask. I am always hopeful, but never surprised when beaten. But I do enjoy banter. IMHO its the best part of football, or any competition. Never upset for more than a couple of hours at defeat. There's only one winner.