That's Vin Garbutt all over, Ritchie. First, he's got a mind like a jet-propelled gannet to seize on anything that happens, and use it in the act. Second, he'll always do it in a way that is designed not to hurt anyone.
There's some helluva good people in the folk world, but I think Vin is right up there up the top, both as a person and as a musician. Vin and Martin Carthy and Pete Seeger...