A guy approached Jack on the street one day and asked him if he could spare a few shillings. And Jack immediately dove into his pocket and brought out all his change and handed it over to this beggar. And the chap he was with—I think it was Tolkien—said, "Jack, you shouldn't have given that fellow all that money, he'll just spend it on drink." Jack said, "Well if I had kept it, I would have only spent it on drink."
Read the rest of stepson Douglas Gresham's interview here.