answer:It’s a very personal choice. When Bub got into a fight with another dog, it resulted in an infection which took away most of his muscle mass. Three days after the fight he couldn’t lift his own head to drink water. Bub had been my husband’s best friend for the 13 years of his canine life, and we wouldn’t have dreamed of letting him pass alone. It was a heartbreaking moment, but as he was getting the shot Jason said “I love you, Old Man.” Bub’s body couldn’t move much, but he did inch just a bit closer and looked him in the eye before his heart stopped. I think that last “I love you” was so important – more for Jason than for Bub.