Thanks for your insightful comment! 13 years??? I think it would overwhelm me if I had to do this even for just 13 months!!!

I think we are unwittingly moving towards the regular schedule you suggested, but instead of twice a day we are still going out ... well, whenever I notice that he starts to behave like he's looking for a potty spot. But that tends to happen at almost regular times.

With our last dog, who was already trained when we adopted her, it was a twice a day thing, not even at the exact same times, just once in the morning, once in the evening. I hope eventually we can get to something like that with Bandido too.