There is a pleasure in the pathless woods, there is a rapture on the lonely shore, there is society, where none intrudes, by the deep sea, and music in its roar: I love not man the less, but nature more. - George Gordon Byron
Even a well-adjusted cat can be traumatized by a particularly bad experience with another animal, a human or her environment. If you suspect you're dealing with a traumatized cat, giving her a combination of affection, personal space and time will help her come around and recover.
Holistic vet Dr. Karen Becker gives you invaluable information and encouragement to help improve pet health, regardless of age or health history. http://healthypets.mercola.com/sites/healthypets/archive/2010/09/14/false-beliefs-in-pet-care-for-aging-pets.aspx
We had a little boy that looked like this. We called him Tiger Baby. He was retarded. He lived for 2 years, but remained at the 6 week level of intelligence and function. But his Mom was able to litter train him.