My elderly fox-terrier (12 and a half) has erm..bladder issues.The vet isn't quite sure what is causing the problem,but he is also getting weakness in a back leg and generally shaky about his back end. He was on meds which worked well for a while but now they have stopped working and he leaks urine when he lies down to sleep,or when he comes to the door to greet us if we've been out.We are pulling up our sitting room carpet as it has been subject to wee too often,and he has fleece type bed liners that get washed every morning. He also has to be bathed much more often which triggers his itchy skin a bit but otherwise he smells horrible.Any tips or advice for dealing with this? He is a lovely dog and we want to keep him comfy in his old age while also having a reasonably hygenic house that doesn't smell of wee!( Are waterproof beds any good?)