Digging for gold

My boy has figured out how to pick his nose. And he's very good at it. Most of the time he doesn't actually dig around, he'll just sit there with half his finger up one nostril like it's the most normal thing in the world. He did it at dinner tonight and I thought I was going to fall out of my seat laughing. Which is, of course, going to encourage the behavior. My wonderful hubby was the one going, "Now son, we don't do that. Please take your finger out." And I'm sitting there doing my best to hide my laughter. He really is adorable when he does it but I don't want him to still be doing it when he's 16!