I LOVE talking to these kind of folks!
I had a similar experience while I was working at a military surplus store.
I asked one of my customers about his accent, it turns out that he serves in a Scottish unit in the Canadian armed forces in which he wears a kilt that was made in the 1930's. We talked for quite a while about how his unit fought kilted in WW1, and how box pleats differ from knife pleats :-)

I love those encounters :-) Thanks for sharing yours with us!