misfortune conceived as injury

Men are not angered by mere misfortune but by misfortune conceived as injury. And the sense of injury depends on the feeling that a legitimate claim has been denied. The more claims on the life, therefore, that your patient can be induced to make, the more often he will feel injured and, as a result, ill-tempered. 

The Screwtape Letters by C. S. Lewis. 1942. p.111