But she had a twelve-room
House to clean.
Had to get breakfast,
Dinner, and supper, too--
Then take care of her children
When I got through.
Wash, iron, and scrub,
Walk the dog around--
It was too much,
Nearly broke me down.
I said, Madam,
Can it be
You trying to make a
Pack-horse out of me?
She opened her mouth.
She cried, Oh, no!
You know, Alberta,
Madam is trying to over work the life out of her. A  pack-horse  is a horse used to transport goods, equipment, etc but is most often used as a metaphor to describe over working someone or something. 

Madam and Her Madam