When Finn was being house trained, I wouldn't leave him unsupervised for very long. So, when I would go into the bathroom to shower, I would bring him in there with me, instead of crating him. He would always get in with me. He doesn't get in with me anymore, but, I usually just put on my bikini and get in the bath with him and then shower afterwards with him still in there. Just to make sure he gets doubly rinsed. It's crowded, though, he's big!