what did the autor think about montmorency when he first came to him

From the text:

When first he came to live at my expense, I never thought I should be able to get him to stop long. I used to sit down and look at him, as he sat on the rug and looked up at me, and think: “Oh, that dog will never live. He will be snatched up to the bright skies in a chariot, that is what will happen to him.”