"It was just starting when Jehovah Witnesses knocked on the"
I am generally impolite when I get rid of them...especially when they drag their little kids around!
It's more godly to use their own bible that they are incorrect, then send them on their way.
I once heard a comedian talking about the time a JW knocked on his door. He said he loves to talk to people and let the guy in. Once they sat down, the JW just stared at him. The comedian asked "So what would you like to talk to me about?” The JW said, "I don't know. I've never made it this far."