Same to what are they called, they are docile and tranquil,

 and so they can live peacefully with dogs, children and elderly.

With perseverant quality, they can tolerate lots of pains,

so people think that they are missing the sense of pain.

They are very friendly to human beings, even some strangers

approach them, and they will not hide themselves like other cats.

They will get close to strangers like the dogs.