Morticia...I know the feeling. Keep the faith. Let us know.Sins...you can't. Even cat "haters", and there are lots of them, ignorant as they may be ( my own brother is one ), have to have some common sense and that guy sounds like he had less than Homey. I have heard - only ever had female cats - that you can curb a tom's PUBLIC display of "affections" by use of a pillow or towel or bathmat placed in a private place for his "use". As far as how to train him to "affectionate" that particular item, I have no idea. Well....no, I have no idea.
gnu