Our sweet Great Dane mix, Eightball, was 3 years old when we found him while looking for a brother for our lab. He humored the crazy lab and we knew they'd be best friends. Eightball is a big goofball who loves being a part of our family. He was surrendered by his previous owners and we could tell he just wanted to be cared for. But he "gave back" by donating blood at the university, willingly (while being pampered), for many years. His calm personality allowed it. I think they estimated that he saved about 40 dogs lives with all his blood. Now he's an old man of 12 years old. We love our Eightball!