Favourite?
In pre-Mudcat days, I posted a version of Dave Dobbs' "The Magpie" to the Digital Tradition, including some changes I had made as I learned it ... About fifteen years later, two elderly American folkies turned up at a singing session in Galway, Ireland, where I live - and sang MY version! "We got it from a friend of ours who found it on something called 'Mudcat',! As a birdwatcher - that's the only homing magpie I've ever encountered!

Worst moment? Doesn't bear thinking about ...

Regards