Oh! I know that squeal when he sees Gran'ma melts your heart and is priceless! Sounds like he's at the stage where you blink your eye and they've learned/done something new. Enjoy
We're still pluggin' away with housebuilding but I do believe the end is in sight. If anyone'd told me it would take this long when we started, well, I'm pretty sure I'd have never started! Good news: when it's done I get to majorly expand the garden which we really need.