The guy next door to me, where I used to live, had a large male Rottweiler named Monster. My neighbor worked a lot so sometimes he wasn’t able to walk him for a few hours at a time. So, he built a small platform for the dog to step up on and he trained him to stand there to piss. The piece of fiberglass floor on it slanted toward the center where the urine could easily drain down into a container that collected it. Often during the week he would bring over a jar or two for me to drink. He was always fascinated that I liked drinking dog piss and he was more than willing to keep me in supply. Those were fun times. It was nice to have a good neighbor, especially one with an awesome dog.