So I've just gotten this and I need a lot of help, one day my dad came home joking that he had gotten me a cat, this cat was a black and white gorgeous little cat and of course I got excited and gave it some milk (i know this is bad) then I heard it wasn't mine and put him outside, he sat on my car coming back and forth for the next few days and kept sneaking in my house, now he just strolls in whenever and when I put him out he doesn't seem to go home, he's owners are nice people but are busy and don't seem to feed him as he comes in starving and at night when I'm locking up he runs in scared to death of the night and I am forced to either leave him out in the cold or keep him in my kitchen because of the neighborhood fox, I don't know what to do I love this cat to bits now but I know it's not mine. Give me your thoughts