Once upon a time ...
a friend of mine and me (old scoutmasters, with a guitar and a bamboo flute) were wandering through a South German wine area near the Rhine. And then we saw an inn, some tables with bottles and snacks at the front, and we were told that the Tour de France will be passing soon. A jeep stopped, out came a French Colonel (some decades ago the hereditary enemy for centuries). He ordered to feed and wine us.
After a while he came out and looked for us, and said: "I should like to invite you inside, but I see you are well fed and get a good wine; I'd rather rather like to be with you outside." And then he asked us for a German soldiers' song from WWI about the last surviving brother of three. !!!
So we sang this song, and he was so happy to hear it; I don't know the reason why. May be he was a boy scout, too; maybe he was tired of an enmity of old - but maybe he liked this song and had his experiences warring in far countries. So we got our payment before thinking of busking. God bless you, foreign colonel!

Peace! (as my friend mooman ends his contributions)
Wilfried