What does Candy say he wishes someone would do to him when he can no longer work anymore?

Candy does not make address this issue in Chapter Three, Slim does....

"Yeah," he said. "You can have a pup if you want to." He seemed to shake himself free for speech. "Carl's right, Candy. That dog ain't no good to himself. I wisht somebody'd shoot me if I get old an' a cripple."