I'm getting one of these to use when the Talibaptists come to my door:

[Are_grits_groceries]

Yo God! Detector

Yo, God! Detectors are hand-made by the artist. How many times have we heard it said, "Oh Lord, give me sign!" Alas, too often the reply is vague and ambiguous: the phone rings at tna opportune time, a feather falls from out of the blue, a water stain appears that resembles a religious image. We all want to know if god exist; maybe he just needs a reliable method to let us know he is here. They are housed in a 1-1/4 inch (3.18 cm) diameter sealed aluminum case with a glass top and use a painted brass indicator dial. Each comes with a 4-page pamphlet, which includes answers to our frequently asked questions. Totally reliable. The detector will only move in the presence of GOD! Each one is individually numbered.

Standard "Face of God"
Standard "Hand of God"

http://evolvefish.com/fish/goddetector.html

I can check 'em out and show them the results. May get a keychain one for my adventures at the Piggly Wiggly or the Hardees.

[hobbit709]

1. This works on all types of BS-not just the god ones

http://www.thecryptmag.com/Online/29/BullshitDetector.html

[thunder rising]

2. Offer them a glass (or bottle) of water then kick them off the property

[kywildcat]

3. Invite them in for the daily

sacrifice of small rodents and children. Explain first that the Lord God of all that's Good and Holy doesn't allow you to eat the sacrifice, so if they're hungry-it's best to move along. Usually works if your in a bathrobe, slippers and holey boxers.