Just a bit moblie...

I'm pretty sure you can't call this crawling, or bear-crawling, or even scooting. But it's a combination of using his arms like an army private and using his toes like Jim Carey in "How the Grinch stole Christmas." He is "throwing" the ring into the hard ground and letting physics take over so that he can chase it. The lovely lady stopping him from running into the brick is my precious and wonderful mother-in-law. Enjoy!