In his first at-bat on Pet Brock Day, Brock Holt, of course, homered

On Tuesday, during the Giants-Red Sox game at Fenway Park, it was Pet Brock Day. Yes, like the Pet Rocks -- except Pet Brock. As in Red Sox utility star Brock Holt. Here, just look below:

I spy two Brocks.... #PetBrock @RedSox ?? pic.twitter.com/aX5fvbheG6

— this is not me (@kalemishap) July 19, 2016

Thanks @RedSox I've always wanted a pet Brock but never knew it until tonight pic.twitter.com/XwGsUH6rvT

— Sox Lunch (@Soxlunch) July 19, 2016

So, what do you do when your team is giving away rocks with your name on it? You hit a home run in your first at-bat of the game:

Good job, Brock (and rocks).