Just as a random thought, how do you respond to the various groups of religious persons that may come knocking on your door?
Like, do you invite them in and chat? Do you question their religion or belief? Do you turn them away? Rudely slam the door, politely tell them you're not interested for an extended period of time? Something in between?
Just try to ignore then until they leave?
I personally happily give them a friendly conversation, although I do blatantly say it would take divine intervention to sway me to any particular religion.