Asking for advice and a truism

[sylviaviridian]

I've never had Mormons come to the door before. When a pair of them came knocking today, I was caught flat-footed, and hadn't prepared any ways of messing with them. So I'm asking for help here: when Mormons come to the door, how do you suggest I screw with their heads? If they're too pushy, I'll try to convert them, but that's a little mean, and I don't want to do that if they're just friendly like these ones were.

Also, a livejournal truism: No one cares how off-topic your comment was, if it was in praise of their icon.