After lots of passing conversations about how big boys go in the pot, last night before bed, he demanded the pot, and had a pee. (And then demanded pants!)
This morning, first thing, he demanded the pot, and had a poo. Then had another poo in his pants while I was cleaning the pot, but still. And he's had a couple of pees in the pot, too. (And he's been so distracted by all this, he hasn't breastfed at all this morning, which is another first! )
One problem, though, he's got very runny poo (otherwise healthy and well), so I'm giving Yakult to try to settle him a bit. He has toddler diarrhea, normally, anyway, but it's been bad lately.