Stray Cats

I have two cats that have a name. They are "inside" cats and they hog the covers and think they own my place. I also have what I call my "outside" cat, a beautiful all black cat that comes around to scrounge food and water. She(?) is very friendly, likes to bend herself around your legs in that figure eight thing that cats do and doesn't seem to have any scars that I can find. She is moderately well fed (I suspect I am not the only stop on her route) and generally a nice cat. If I didn't already have two very time consuming space eaters in my home I would happily make this cat an inside cat. Whose cat is she? She was clearly some one's pet- if she isn't still- and is very familiar with the workings of a home. She gets very excited by the sound of a can opener, so she understands what that is about. She also has good door manners, she waits for me to go first, doesn't dart and generally seems to understand that I have the opposable thumbs. If I were to venture a guess, someone moved away and left this beautiful animal to fend for herself. I have heard this line of stupidity before, cats will be fine if you leave them, they can hunt and fend for themselves. I like to think that there is a special place in hell for the morons who think this. If you have a pet, please take care of it. Feed it, get shots for it, and most of all, please have the animal spayed or neutered. I'm not trying to sound like Bob Barker here, but be responsible. You'll thank me later.