When I first started singing folk songs, I was learning bunches of stuff from the Celtoid supergroups of the 70's; Planxty, Bothy Band, Silly Wizard, etc. Since I'm an American from Wisconsin, I had a wee bit of a problem with the Irish and Scottish accents, needless to say. My favorite msitake was my original rendition of "Broom of the Cowdenknowes", where I thought the chorus line went:

"Fain would I be in my own country
Held in my fair one's arms"

I was embarassed to find it was supposed to be

"Herdin' her faither's yowes" (Herding her father's ewes for us American English speakers)

Guess I didn't understand the average Scotsman's love for his sheep...