I know where you are coming from!!! Cooper potty trained fairly easily, more so peeing than pooing, but still we will go for a week or two and he has no accidents and then 1 day it will be like he forgot everything. Luckily it will just be 1 bad day out of 7 or 10. I think they are still just immature and will have those days and we just have to love them even so and remember that tomorrow will be better. Luckily in our house if one of us gets irritated on Cooper's "bad days" the other reminds how good he "usually" is. Take heart it WILL get better and then we will be fondly remembering those "puppy days" and won't be remembering any of the bad, but only the good.