No, this is not a rhetorical question, it's a song title. I heard it first in a concert reading of a play by Sean O'Casey, PICTURES IN THE HALLWAY, based on part of his autobiography. The song was sung in the play and I immediately added it to my repertoire. I've been trying since then to find out something about the song. I'm not certain that it is what can be literally termed a folksong. O'Casey might have written the words for it himself. Can anyone on Mudcat give me any more info? Thanks.