I've got a 9month old pup. Potty training was relatively easy, up until a month ago very rare accidents inside and the ones that occured were my fault for not being quick enough with the signs.
The last month or so there have been a few wees inside, mostly I put down to me being too relaxed and not watching him enough but this morning we got up, I let him straight out for a wee, he barked to come back in and he went straight into the other room and had a wee. He's done it a couple of times now and I'm just trying to understand the behaviour. It's not always easy to tell if he's been outside before I let him in as I've got a wrap around garden and he pees all over.