My son put the video on Instagram, and it went crazy. The funny thing is, I’ve got 15 grandchildren and six great-grandchildren, and none of them knew this side of their grandpa. Because of my upbringing or our old-school generation, if somebody’s in trouble, I know you don’t run away from it. Because life’s not always easy, you know? I was in the Army in Vietnam. I’m a recovering alcoholic, coming up on 33 years sober. Some days you wonder if you’ve still got what it takes to do something big—and then a moment like this one comes along and you say, “Well, I guess I still do.” —As told to David Hochman