Started training DS at 3.4 and he did really well for the first few months. Then had regression after moving house in October but had been doing much better over Christmas with hardly any accidents. Then this week he deliberately weed on his bed while DH was trying to dress him, then weed on the sofa through his clothes yesterday and today whilst watching tv. I suspect it was laziness, that he didn't want to stop watching tv to go to the loo and he sort of admitted that, but also said he 'didn't know he had to go' which I think is rubbish as he does know most of the time. Is this a known 'thing' at his age/stage? When does it stop?! Ideas for handling? I'm not keen on all-out yelling or naughty step for something like this.