" Psychology: “Sympathy the human species universally craves. The child eagerly displays his injury; or even inflicts a cut or bruise in order to reap abundant sympathy. For the same purpose adults … show their bruises, relate their accidents, illness, especially details of surgical operations. ‘Self-pity’ for misfortunes real or imaginary is, in some measure, practically a universal practice. "

― Dale Carnegie , How to Win Friends and Influence People