I've got to support the general consensus here too. I've had a fair amount of trouble with Squint but it seems phased, if that makes any sense. She'll go for weeks or months with any trouble at all and then, with no warning whatsoever she'll shit in the living room overnight. She's done this several times but they're very spaced out and don't seem to have a detectable pattern or illness or anything to it. I've tried modifying her eating time so that she processes earlier but this only works sometimes as she'll only eat when she's hungry which means she'll go a day or two without eating in some cases. In recent weeks she's been voracious and seems to be growing again (of course it's probably my imagination as she's nearing 2 years old also (she's Waki's sister) but she seems...I don't know....longer?)
There have been some extenuating circumstances in recent months as we have some house guests who are staying with us short term while working out new employment arrangements and they come complete with a old goofy bloodhound called Odin. Odin's a joy to be around. Very well balanced and respectful and you guessed it, Lili's in love! Can't get enough Odin.
Ida though? Not so much. In fact they had a serious altercation about two weeks into the program, back in mid-July that scared the hell out of all of us. Odin's a big guy, probably 90+ Lbs! Ida's a big girl at about 80 Lbs. Odin had been very good with Ida for the first two weeks but she was always tense and growly. Well, eventually Odin lost his patience with this and pounced on her one night after dinner. No real damage although he did draw blood from her right ear...although again, nothing serious. Basically kicked the old lady's ass a little bit for being growly with him all the time. Well, long story short we've segregated the two 'families'; one upstairs (us and our dogs) and the other downstairs (them and their dog). It's been tense but at least there's not the chance that we'll have fights going on all the time.
This leads back to Lili and her 'upset' routine. I believe that this is contributing to the bathroom issues because her whole world is upside down with the house guests. She's got to get her 3-5 miles a day otherwise it's problematic and most often little, smelly morning surprises are how she indicates her displeasure with our disrupted household structure. I'm trying as best as I can to keep a normal schedule with walks to and from work (about six miles one way) and routine interaction with both of our dogs but Lili occasionally needs to 'protest' it seems.
Patience is the key. That and keeping them in close contact. We're considering reintroducing the crate at night which she hasn't used since she was 16 weeks old! Gotta do something!