Ha, an old girlfriend of mine answered the door naked and invited them in.
I wish I had this problem. The only proselytizers I've ever had to deal with ambushed me after a fishing trip, walking back to my car. We got to talking about the old testament. That worked for me; they really knew nothing about it, only carried the new. They couldn't address any of my questions, so eventually had to move on.
This remembers me of a time in my younger days. JW would come knocking on the door every saturday morning. If you have ever gone clubbing the night before early morning visitors are not on your top ten to do on a saturday.
One saturday i was so pissed off i look them straight in the eye and told them i worshiped the devil.
They never returned..
One time I had some religious nuts show up on my property. I said to them, "If you don't leave, I will call the cops on you." I never seen them sense.
My mother is a JW and they have a 'No Call List' just ask them politely but firmly to be put on that list and they will no longer call on you. If they do then just mention to them that you have already politely asked them not to call on you and that you would appreciate if they would respect your wishes. Sometimes they check just to be sure that you really, really, really don't want them trying to save you before Christ and his Angels come back and slaughter all the non-JW's until the world runs ankle deep in the blood and guts of the 'worldly' people who did not heed their call. I know, it's seriously fucked up but what do you expect when dealing with religious crazies?
That's about it.
(BTW, Step 1 is optional.)
"I'm not interested. Have a nice day." Close the door.
Don't answer. If I'm not expecting someone I likely won't answer the door.
Depends on the mood I'm in....being that they make a living selling lies, I figure I might lie to them a bit and say I'm Jewish and then proceed to tell them they are a blaspheming cult, and then see what happens afterward. I wouldn't recommend answering the door in the naked because there is a chance they might actually enjoy seeing that, and I just don't see any sense in giving folks like that any sort of pleasure, if you get my meaning. By the way in case you wonder, there was no typo above, I purposely said in the naked instead of in the nude because well...I just have to be different and sound a little unusual, hehe.
I tell them I am Catholic altho I have not been for 50 years!