I have seen Walmart personnel chase miscreants on several occasions.
It did provide me with some amusement.
One time they failed to catch a very fleet, footed lad as I drove onto their lot.
It was a very funny scene.
It reminded of one of those British fox hunts, hounds baying, little fox running for its life, and big bosses shouting encouragement to their hounds.
I learned later that the fox was subsequently captured by members of the local constabulary, hiding in some shrubbery.