by Ted Hughes (an excerpt)

Pets are the hobby of my brother Bert.
He used to go to school with a mouse in his shirt.

His hobby it grew, as some hobbies will,
And grew and GREW and GREW until –

Oh don’t breathe a word, pretend you haven’t heard.
A simply appalling thing has occurred –

The very thought makes me iller and iller:
Bert’s brought home a gigantic Gorilla!