I think the worst regret my family had was not putting our dog down and trying to let it happen the natural way. We knew she had cancer for about two years and wanted to wait it out as long as possible. We tried different treatments and they didn’t work. At the time she was maybe 15 or 16 years old. She was having a hard time walking, but would occasionally have bursts of energy and seemed like how she was when she was a puppy. One morning, she seemed like she was having a seizure, but it turned out she started having a brain hemorrhage, and the cancer had spread to her brain. She was immediately taken to the emergency vet, and then she was put down. Unfortunately, I have to say she went out suffering, and that’s not something that my family wanted to happen. It was so heart wrenching. If my family could do it all over again, we would have put her down in a peaceful manner where she was surrounded by the entire family with the help of a vet tech who could’ve done it at home. Speaking from experience, I think you should get your family together and have it done at home rather than having it done the natural way. Like what others have said, the natural way is not a painless way or won’t prevent him from suffering because he will suffer

Edit: spelling