I remember just before I left the UK about 15 years ago that the Jehovahs' mob got smart and sent out pretty-ish looking girls in teams of 2 to knock on your front door.
If like me, you were reared on Swedish Erotica pornos, you would always let them in and expecting to soon be balls-deep in the pair of them, with the opening gambit about religion being just a ruse to get shagging...?
Uh oh. 20 minutes later, and they're still fully-clothed and without any 70's porno mascara on. Yakking on about fukkin Jehovah and what-not.
I think a pot of boiling oil suspended over the front door is a good solution to the doorstep salvation cnuts.