My neighbor went to visit her family on the Wednesday before Thanksgiving. She intended to be gone only a week. However, due to health issues, she is not back yet and her little male kitty is pitiful. He cries and scratches at all the neighbor's doors trying to get in. He has plenty of food and water and can get in to his own front porch but he's just so lonely. I can't let him in because I have two other kitties that would not be happy with me. I do pet him when I go outside. Is there anything else I can do?