Too bad his friends didn't join him.
"While playing in a sandbox in his family’s backyard - along with five of his peers (including three brothers and two friends), the boy requested of them to help him recreate a scene from Naruto by burying him in the one-foot-deep sandbox, head-first, from his head to his chest.
Once he was buried, the boy was said to have been thrashing around violently. After witnessing this, his friends realized that something was wrong and called for the help of adults. Upon arrival, the adults immediately called for medical help, pulled Cody from the sand and began to administer CPR to get him breathing once more."
Yeah, they left him in the sand while they went and got help.