Is it illegal to greet a Jehovah's Witness at the door naked?

[IsabellMcDonald]

Lately a lot of religious groups - Jehovah's Witnesses primarily - but others also - have been canvassing my neighborhood and spreading the good news. I am just fine without their little visits. The next time some drop by I was thinking about answering my door naked - even inviting them in if they want to talk. Would this be illegal? After all, I'd be in the privacy of my own home. Do you think they would put out the word to their fellow proselytizers to avoid my place?