The best thing is to confine them to one room. Make sure it has hiding places and all his needs. Patience, of course, is the key, but gentle and quiet behavior on the owner's part will work wonders. Try not to force him to do anything. Make your attempts to pet him as unthreatening as possible (I have been know to lay on the floor on my back in order to show submission to the cat) Being in the same room but NOT trying to interact with the cat is important. Just do things: Watch tv, read, play cards, talk......just let him observe. Tempt him to come close with extra special treats. And do not free feed. Let him be dependant on you for his meals. If he can trust you at feeding time you can begin to tame him and then the relationship can grow from there.
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