Karen, did your husband actually see her pee on the doorstep? I'm sure there are other neighborhood cats coming around if you put food outside. You're doing a great job, because she doesn't look very thin anymore. She looks healthy and well fed.
C.C.'s mom, how funny, he made himself right at home.
I usually let my cats out in the backyard for a few hours, leaving the backdoor open for them. Imagine my surprise one morning seeing a strange cat in the kitchen eating my cats food. From that day on he came to eat every morning and evening. I called him gray boy. He would always announce his presence with his distinct Siamese meow. My cats never bothered him. They even let him spent one rainy day inside sleeping. When he suddenly showed up one day with a collar and rabies tag, I was so happy that he had a home. He finally stopped coming around all together, and I often wonder what happend to him.