Yeah, I kinda want to avoid "training" but encourage what seems to be his natural behaviour iyswim. He really really hates a wet nappy, and that's becoming more pronounced as he gets older. He's an absolute dream when he's dry, but will climb on me roughly and push boundaries like no tomorrow when he's wet - just like when he's tired. It's like two different children. He immediately reverts to Perfect Baby once he's got a dry bum.
I will be putting him in nappies outside the house. At least until I've established whether today's stretch (and the previous dry nights) is a fluke or if he's actually got control and was deliberately waiting until we got home. A week or so ago I was changing a wet nappy on schedule - in the night, first thing, before nap, after nap, after bath - but often now the nappy is dry, so I leave it until it's been used then change asap because of the behaviour and rash.
Strategy for the next few days is to watch and observe, then. I might increase the nappy free time - with potty access - to breakfast. I can get him up, bring his clothes and nappy downstairs, and get him nappied and dressed just before we leave the house. What does the Quiche Wisdom think of that plan? Also, should I maybe take him with me if I go, as I normally leave him in the safe living room and go alone, to make it seem like a normal and desirable thing to do?
Weeing on the floor - or my parents garden - seems to upset him. So I don't think it'll be hard to get him to make the connection to using the potty - If (and it's a massive IF) he's doing this deliberately and because he's ready. If he's still in nappies at 4, that's fine by me although I'll be crying with tiredness at having 4 years of getting up in the night to change a fucking nappy :)