Goosey Goosey Gander

Goosey Goosey Gander is a nursery rhyme referenced in the novel N or M?.

The rhyme:
 * Goosey goosey gander,
 * Whither shall I wander?
 * Upstairs and downstairs
 * And in my lady's chamber.
 * There I met an old man
 * Who wouldn't say his prayers,
 * So I took him by his left leg
 * And threw him down the stairs.