Mary had a little crack

Mary had a little crack
Whose fleece was white as snow,
And everywhere that that Mary went
The kids were sure to follow.

She took some to her school one day,
Which was against the rules.
It made the children laugh and play
To smoke some crack at school.

And so the teacher turned her out,
But still she lingered near
And waited patiently about
For the children to appear.