Quite suddenly, Things seem to have clicked with using the potty. After our last aborted attempt, we decided to hang fire until the summer holidays, when we could have naked days spent in the garden with a potty to hand and no pressures from nursery or anyone else.
However, the recent nice weather meant that we had our naked days in the garden a little earlier than expected, and we had some limited* success with using the potty.
*Limited because as I may have previously mentioned, Jacob still had no prior warning of a poo being imminent, and these special moments happened twice in the paddling pool. Ugh.
After a last week in nursery before the half-term holidays, we broke the pants out again on Thursday, and despite me coming down with my regular-as-clockwork school holiday illness, had lots of success all day Thursday and Friday, including Jacob's first ever declaration of "I need a poo!", followed by actually getting on the potty on time and doing ALL his business there. I also realised that he was staying dry through his naps, and while out-and-about, and he started asking to use the toilet while we were in supermarkets, and being very happy to sit on grown-up toilets (previously, he's been terrified of falling in and has refused to entertain sitting anywhere near one).
This weekend, we've not had a single mishap; he's asked to use the toilet or potty at 3 or 4 hourly intervals (which I suppose is a bonus of late potty-training - no 15-minutely trips for us!) and we've managed to bribe him into wearing pullups (up there with Water and Vegetables on Jacob's scale of Unacceptable Things) so that we don't have to run quite so fast to find public toilets if we're not at home.
Due to the two extra bank holidays, nursery is shut this week, and if I get better soon I'm taking Jacob down to Devon with me to poke my sister's ready-to-burst belly some more. So we have a further 7 days to crack this, before letting him loose on nursery again. Due to the amount of exciting activities they do there, I think he's far less likely to remember that he needs the toilet/ask to go, so I really want him to be comfortable in pants before he goes back.