It sounds like you're doing it just for the crack of it.

Winter-related poem:

Snowball

I made myself a snowball,
As perfect as could be,
I thought I'd keep it as a pet,
And let it sleep with me.
I made it some pyjamas,
And a pillow for it's head,
Then last night it ran away,
But first...

(indicate to the rest of the school that they are to shout out the last line of the poem)

...it wet the bed!