I'm getting frustrated with Reesie. He was doing so good with the potty training thing, and then it seems like this last week or so he is just not doing very well. I've cleaned up three spots already. He is 6 months old. Is this still normal for his age? I've tried the bell on the door for a few months now, but he is just not getting it. He will not tell me that he has to go, he just goes in the house somewhere. I've tried to be consistent and take him out every hour or so, but sometimes when I think he's gone he will come in and pee on the floor. Why won't he tell me???