Update on my Marcus. He has been off of insulin since March 2018--almost 2 years. We check his BG every couple months, or when he seems different for any reason. He had some peeing-outside-the-box issues last spring, but the vet checked him out--$200 later, it was determined it was behavioral--he was upset over something. We added another litterbox and the plug-ins to reduce stress, and gave him tons of extra positive attention, and he has been good since then. He and his 2 housemate cats pee a LOT, but at least it's in the letterboxes. He is 18 pounds, but still leaps with ease, up to counters, tables, and dressers. He eats only Friskies pate. With 3 cats, we split 2 cans by 3 at 6 a.m. and 6 p.m. and split a can at about 9 p.m. So between 3 cats--5 cans per day, and no dry food. Marcus drinks plenty of water. I am happy that this group exists. Just by being here, you have done so much to improve the quality of life for Marcus, and I'm sure tons of other cats. Thank you all!