Shlepping yourself home at the end of a very, very long day, you notice a dark shape sitting next to a corner of your house. As you approach, you see it is a cat.

You look a little more closely. The black hair, once no doubt long and satiny, is now all in mats from much time on his own. It is missing in spots and you can see marks of bite wounds here and there. The tail is crooked as if it had been broken. The cat is sitting with his back to you, and when you call out, only an ear moves, to swivel in your direction and listen.

What do you do?