In my area there was a spate of incidents in which totally naked men answering the door when sisters called. I got sick of this and decided I wasn't going to let a bit of nudiness put me off. And sure enough me and another sister went up to this door one chilly morning and a naked guy answered the door smirking like he expected me to run away screaming, only I stood there, looked directly into his eyes and spent the next ten to fifteen giving him a Genesis to Revelation sermon without batting an eyelid.
I thought, if he wanted to go all "full monty" I would go full JW.
At the end I said "oh and BTW you might want to put something on it's cold out here."
I think I wanted to high five the sister I was with, but she just stared at me speechless and said " er...that was great..."