I have no problem with those who ask and then leave when the response is a polite "no thanks, I have my own set of beliefs".

However the ones who persist in trying to push their views on me knowing that I have other beliefs is not acceptable. And to continue to thrust those views on me and to try to scare me by saying I will be dammned forever is the height of arrogance. It is these people, who will not take no for an answer, who really wind me up, and it is to these people I will be rude if necessary.

If there's one thing I hate in this world it's having someone else's beliefs rammed down my throat!