Mac had no problem letting us know when he had to be relieved. He ran like the wind and jumped toward the backdoor, but in mid-jump he swung his body around and BAM! He SLAMMED his whole body length-wise against the door. What a hoot...made us laugh every time.
When he got Arthritis really bad we discovered an herbal mix called "Hokamix" which gave him another couple of years of puppyhood. Except for his TREMENDOUS love of barking at absolutely anything and everything, lol, he was a wonderful dog.