According to Austin, the alert happened a short time into their walk. Bo had been heeling at Austin's side as the two walked up and down the street. Then all of a sudden, Bo stopped. Austin called Bo and when he did, Bo took one step forward and then pawed and bowed -- his alert chain for a low. Austin recognized the alert and turned back to the house.
I was surprised to hear the two of them back to the house so soon. Austin came bounding in the house with Bo and announced, "Mom, you're never going to believe it, Bo just alerted to me!" We checked and Austin's blood sugar was 74. We treated Bo wildly for alerting to his boy. We rewarded him with Dick Van Pattens' dog food roll, a new high value food reward we just started using last week, plus a game with his favorite toy and tons of love and praise.
I took these pictures and video today when Austin and Bo were practicing loose leash walking on our street this morning.