In The Boy in the Striped Pajamas by John Boyne, why has the author used capital letters in the phrase “Hopeless Case”?

In The Boy in the Striped Pajamas by John Boyne, why has the author used capital letters in the phrase “Hopeless Case”?
In The Boy in the Striped Pajamas by John Boyne, why has the author used capital letters in the phrase “Hopeless Case”?
In The Boy in the Striped Pajamas by John Boyne, why has the author used capital letters in the phrase “Hopeless Case”?