Monty; canine tumbler. .

I'm showing this video (do people still use that word?) to demonstrate how Monty retrieves a ball or stick.  He tries to grab it in his mouth, then tumbles head over heels in a grand demonstration of canine gymnastics.

Do other dogs do this? I should add that Monty only does this on GRASS; but when on grass he does it EVERY SINGLE TIME.. Lady M worries that he'll break his neck!