Whether they be Witnesses, Mormons, or another proselytizing religion, how do you deal with people coming to your door to spread their religion?
I just had my first experience since getting a place of my own and had a decent conversation through the crack in my door. After I told him I was an atheist he tried to use apologetics; when I told him I was familiar with his arguments and didn't find them convincing further explaining that I take a scientific route of belief and chose not to believe until there is evidence for a god. He understood and thanked me for explaining and listening to him and he left with a handshake. I was surprised at myself for how civil I was to him but how does everyone else usually respond?
I don't encounter evangelical Mormons much, but the Witnesses come around my neighborhood on about a quarterly basis, as near as I can figure it out. I know the opening of the canned speech about as well as they do, so when the spokesperson comes to "...and we'd like to share," I break in with a smile and "And I wouldn't be interested." Beyond that, I just am politely firm for the next couple of lines, they politely thank me for my time, and we part company. I've found that works better than antagonism or explanation.
My roommate tells them "we worship satan in this house" and they immediately run. The one time I talked to them as a teenager I gave him some new perspectives on the doctrine and what knowing God actually means (basically to refute the idea that u have to know jesus to recognize God after death), he got really introspective and thoughtful for a minute, said thank you, and walked away lol.
Invite them in. I've never been a believer, so I'm fascinated by the religious mind. There aren't too many of those types in my area, so it's only happened a few times, but it has gone fairly so far from my perspective. I tell them upfront that they have virtually no chance of changing my mind but I'm happy to listen to their pitch.
Studying Richard Dawkins' Memetics, sheds a powerful light on what's happening. The Christianity memeplex has taken over the host and replaced its reason for living. The host lives only to spread the memplex, in which case they become memeboids. Check out Dan Dennnet's explanation:
I don't open the door to people I don't know. I might talk to them briefly via my smart doorbell but walking around neighborhoods handing out advertisements, religious flyers, ect is a favorite tactic of would-be burgulars who are trying to get a look at what's inside your home.