Both Henry and Kate Feiffer make one thing absolutely clear: in real life Henry was never sad, like his character in the new book Henry the Dog with No Tail.
In the book, Henry starts out wanting a tail more than anything. In real life, Henry never missed it. So what if he had nothing to chase? He had nothing that could be stepped on either. And there were rugs and couches and sweaters to chew.
At least so he says, in a voice which sounds remarkably like that of his owner, Kate.