There's a strange cat in my house...
About a month ago, this cat started coming to our house every evening...then he started coming in and meowing most piteously...so of course like any decent person I fed him. Mistake. He won't go away, and he keeps meowing. And I can't figure out why he's meowing, either. I thought it would be because he wants to be petted, because he keeps rubbing against me, but then when I pet him he tries to bite me. It's very strange.
We already have a cat--she's one of those angry, anti-social calicos--she definitely wouldn't appreciate another cat in the house...so far he's avoided her when he comes to visit, but recently he's been trying to get in at night, and then our cat has to be the fierce protector of the house...you know. Furthermore, I don't know if this cat is just one of the neighbor's come to visit, or if he's from farther away and got lost, or if he's homeless, or what...I don't want to take him to a shelter because he might just belong to someone living nearby.
What should I do? How could I discourage him?