This Brewers ballboy missed a grounder, slipped and wound up just lying on the ground for awhile

Fielding Major League ground balls when you're not a Major Leaguer is hard. Just ask Garth Brooks.
Ballboys and ballgirls are not Major Leaguers (we think), so sometimes they'll end up making a miscue or two. That's precisely what happened on a foul grounder during Sunday's Giants-Brewers game. The ball attendant down the first-base line thought he had a good bead on Joe Panik's bouncer, but no -- he did not.

Being a great sport about it, he owned up to his spill -- doffing his helmet to the Milwaukee faithful. 

Yes, indeed.