“Not only did he make the world safe for libertarians (my teen kids claim to be the only one’s they know of who characterize themselves as such), but he personally demonstrated in my meetings with him that great, great men can be really, really nice.”

That was the reason I offered as to why I was nice to them. I doubt they bought it (on any level, especially the implicit characterization of me as a great man, let alone a nice one), but I am hopeful they will remember our dinner conversations that apparently contributed much to their intellectual formation with the same warmth you apparently recall your family dinners.