When they knock at my doors, they become rather clueless because I am more educated than them in religious matters (the first question is most often "what do you believe in?"). Next time they come I will invite them and screw them up quite badly. Their Watch Tower thing is so utter shite, cherrypick bible verses to fit into their strange contexts like "does god care about the environment?"
I like how he's talking about jehovah having a plan to clean up all of the rotting corpses to prevent the land and water from becoming polluted for the chosen survivors, and then 30 seconds later says that the earth and water are already polluted. You'd think they'd proofread their speeches, but then again, logical progression probably isn't their strong suit.