Yup. I used to have holy rollers come to my door peddling their fantasies. But as I knew more about their fantasies beliefs than they did, I tended to convert them to logic. They don't come to my door anymore. They'd get so mad at me. It was humorous.

I had/have a friend who never believed and when we were roommates in my first apartment we would get into all types of discussions about beliefs in god. I never initiated those conversations and was never real religious, I just confronted my actual beliefs on the universe which were all occurrences are meaningless random happenings. I always had those beliefs, even when I was tiny and they introduced the idea of god to me which led to an extreme amount of confusion, but if it wouldn't have been for those conversations I would still be more blinded than I currently am. So I bet someone somewhere has.

Why would I bother?

Yes. By my kind actions and compassion and debunking the myth that all atheist are entitled liberal snowflakes.

I have converted several as well as a family of 5.

I converted a door knocker, they've become a good friend since.

I don't know. I have done SO much on line debating in open public forus that there's the obvious spill-over to all the lurkers not participating, so keep that in mind next time bible thumper Bob is tangling with you... there's often a large unseen audience. All the more reason to be civil and not name-call.

I can't be bothered

All the time. I've converted about 30 people now. I always invite the witnesses and mormons in when they come and sliwly as they come back each time i covert them

The best thing to do is to be non-critical and rational. I believe that if a person is brought up to believe or feel a certain way, it's not really fair to blame them for that alone. However, their beliefs (and anyone else's) are legitimate targets of criticism and deploring.

With some, it is just a futile effort. But I guess it happens.

Why try? That reminds me of the crazy people trying to reprogram kids out of homosexuality. Let them be who they are. You could always send them to college. That generally wakes a person up.