Fenixp: I know we're running a bit of a circle here, but I have the same basis for my beliefs as the other guy. I consider a person trying to change my beliefs even in spite of voicing my wish for him to not do so incredibly inpolite and, quite frankly, insulting. Comparison to the car accident is not quite the same thing, because you can actually offer me
empirical evidence of high chances of me dying or severely hurting myself, which is where that stops being a word against a word.
My point was that if someone was heading into danger that you were aware of, but which they were unaware, then the respectable thing would be to warn them of the danger and try to convince them not continue down that path. If they didn't didn't want to listen to your advice, then I agree with you that it would be incredibly impolite to continue to try to change their mind.
I think you're free to now want anyone to try to change your beliefs, but your respect should go to the one who thought you were heading into danger unaware and tried to warn you rather than the one who thought you heading into danger unaware and didn't bother to try to warn you.