Another thing - just curious, am I alone with these types of occurances once in a while? I know I shouldn't expect her to be perfect ALL the time. Just like I don't expect my kids to be perfect all the time. I wouldn't really call what she does a big problem, just a phase. She seems to get in one once in a while, and doesn't last long very at all. But I'll agree, training can help in many cases. Another thing, I think I'm going to up the positive reinforcement a notch or two.
I really enjoy the challenges of having her, it makes it more interesting. She is extremely loving to everyone - too loving, but she likes to test some of the basic house rules once in a while. The potty thing the other day was poop, and that has very, very rarely happened. I'm thinking maybe one other time a long time ago. I'm also wonder if that was my fault for not watching for signs that she needed to go outside that night. I was upstairs, and my dh was involved with tv downstairs, so she might have tried to let him know, but the tv was on and he didn't notice. But I was still a little upset to see the poop since it really never happens. I think it's part of having a dog, too. I think humans sometimes expect them to be human, and they can't communicate like humans do. So it makes it a bit more challenging and interesting in many ways.
Thanks for all your views and advice.