I've always loved people who have this passion for life. Passion is passion. It's the excitement between the tedious spaces, and it doesn't matter where it's directed. It can be coins or sports or politics or horses or music or faith... The saddest people I've met in life are the ones who don't care deeply about anything at all. Passion and satisfaction go hand in hand, and without them, any happiness is only temporary, because there's nothing to make it last. I'd love to hear your dad talk about coins, because that is when you see a person at his best, and I've found that someone else's happiness is truly infectious.