vic smith said
The Copper Family never, to my knowledge added to or augmented or changed their songs through their extensive contact with the folk clubs, though I know that the way that they sung them was discussed
i disagree and would draw your attention to the old dun cow caught fire,as sung by harry champion
there was Brown, upside down
Mopping up the whisky on the floor
"Booze, booze, booze" the firemen cried
As they come a knockin' at the door
"Don't let em in till it's all mopped up"
Someone said to MacIntyre.
And we all got blue blind paralytic drunk
When the Old Dun Cow caught fire

MacIntyre was presumably nearest the door. This is roughly the same as Harry Champion version and makes more sense than the version bob copper possibly altered

And there was Brown upside down
Lappin' up the whiskey on the floor.
"Booze, booze!" The firemen cried
As they came knockin' on the door (clap clap)
Oh don't let 'em in till it's all drunk up
And somebody shouted MacIntyre! MACINTYRE!
And we all got blue-blind paralytic drunk
When the Old Dun Cow caught fire.