This is just sad:
Mice can relax. Even nesting birds can sing a little more cheerily.
Their number one enemy, it seems, is getting so fat he can barely be bothered to get off the sofa for a night's hunting.
As a result of eating more and exercising less, more than a third of cats are overweight and the number of cases of feline diabetes has risen five-fold in 30 years.
Edinburgh University researchers estimate that one in 230 - or up to 400,000 pet cats - is diabetic. Danielle Gunn-Moore, a professor of feline medicine, said: "The lifestyle of cats is changing. They are tending to eat too much, gain weight and take less exercise.
"Unfortunately, just like people, cats will over-eat if they are offered too much tasty food, particularly if they are bored and have little else to do. "