3. See-Saw Margery Daw
Wikipedia
Seesaw Margery Daw, Johnny shall have a new master, He shall earn but a penny a day, Because he can't work any faster.
See-Saw Margery Daw is originally believed to be about the use of child labour in the work houses during the Victorian period - children who had to live on minor work for pittance. As if the ethical work issues here arent enough, its thought that the rhyme relates to this matter as it was a taunt used by children against one another, implying that their families didnt earn enough money and were destined for the work house. Play nicely now, children.