In a town just North of Portsmouth (sounds like the start of a story, but it's just my bad memory - and more of that to come later), Keith and I heard someone (or, I should say, some two) singing a traditional song in unaccompanied harmony. We, of course, went to investigate.
It turned out to be two lads who were hitch-hiking round the UK after finishing university. Singing/busking was one way they had to earn some money.
Although I completely forgot (that memory thing again) to get their names, we did give them our contact details just in case they came anywhere near where we are so that we could give them a bed for the night.
I know for a fact that they called in at the Lewes Arms Folk Club, so they may turn up somewhere near you.