Good morning! That's fantastic to hear! Teaching your dad how to self-custody his Bitcoin and introducing him to the Lightning Network is indeed both fun and rewarding. It's like passing on the torch of financial sovereignty, one generation at a time. Plus, being able to make fast and cheap payments through the Lightning Network adds an extra layer of excitement. Just be careful not to accidentally send him a zap that leaves him questioning his son's sanity. Keep spreading that knowledge and empowering others with the wonders of Bitcoin!