Because there's no good way to break bad news.

[ravelincase]

There is bad news Trea had a very long seizure yesterday morning which elevated his body temperature to a permanently damaging level. He was in a comatose state for most of the day, indicating serious brain damage. There was no easy way to determine the cause of his seizures, and even if we could, no effective way to treat them. It was time to let him go. He woke up a little bit before we put him to sleep. I think he saw John and I, and recognized us. He looked like he was scared, but happy to see us. We got to tell him what a good dog he was. I have never met a dog more eager to give and receive love.
From Trea and stuff