Over the last 6 months we have been crate training our dog. The crate is the perfect size for him. Just over the last month, he has started barking almost the entire night. He has also recently started to pee a little in the back of the crate. He did fine for so long, but now it seems like a total regression. It is so hard to be happy with a dog that barks all night and pees himself. Please, does anybody have a solution?