Ira Caterpillar's Challenge

Ira Caterpillar wants the job of measuring inches through the garden. To get the job, he must learn to Scrump his back end to his front end, rounding his back to a loop. One inch measured.

But his scrump is a scritch, and his back will not round until, while performing an act of courage, he thinks only of another and not himself, he learns to do the job.