He's simply got the instinct for being unhappy highly developed.

Related:

• He is one of those people who would be enormously improved by death -
  H. H. Munro (1870...
• Never be a pioneer. It's the Early Christian that gets the fattest lion.
  H. H....
• Addresses are given to us to conceal our whereabouts.
  H. H. Munro ("Saki") (1870...
• A little inaccuracy sometimes saves tons of explanation.
  Saki [H. H. Munro] (1870-1916), "The Square...
• Women and elephants never forget an injury. -- Saki [H.
  H. Munro] (1870-1916), "Reginald",...
• Prompt
  ...
• I love Americans, but not when they try to talk French.
  What a blessing it is that they never try to talk English...
• Relations are simply a tedious pack of people, who haven't got the remotest knowledge of how to live,
  nor the smallest instinct about when to die. -- Oscar...
• Confront a child, a puppy, and a kitten with a sudden danger;
  the child will turn instinctively for more assistance...