We have 4. One is 22 years old, deaf and nuts. She just sleeps by her food bowl and yells for food every time someone walks by. The other is 19 and senile. She sleeps most of the time, unless she's staring at her water bowl or the wall. They're the bad ones because their senile and annoying. We wake up every morning expecting to find them dead.
The two good ones are rescue cats both less than two years old. We have them because we honestly though the others would be dead now. The lady across the road won't get her cats fixed and they have litter after litter. They get lost as kittens and end up at our house for some reason. We live in the country and they would be coyote food if they weren't captured. We've given away, fostered and raised almost 30 of them over the years. We're pretty sure that cats have somehow marked our house with "suckers" and they know we won't let them die.