Last December, I was on a trip to Da Lat, a highland in Vietnam and stayed in a house in the hill, far from center of city.
There are 6 cats and 1 dog in the house. This is Lucky the oldest cat, he's 13 years old. He was sick 2 years ago and hasn't got any better ever since, but also not worse, despite the effort of the owner. He's almost deaf, doesn't respond to command, his vision is very bad, barely moves, always drools.
That morning, I came down stair and I see him lay down next to the window to sunbathe. The owner said Lucky is very weak, doesn't remember anyone, toys or his favorite food anymore, but still keeps his old habit when he was young, that is sunbathing next to the window every morning until noon. Hard to see from here but he's drooling while closing his eye to enjoy the morning sun.