periodic tablets - Mander

Right, please tell me. Is this just a meme thing or do people actually knock on other people’s doors to try to convert them to their religion?

And does this only happen, bizarrely, in the country with the highest number of gun-owning cowards?

It just seems such an odd combination

Jehovas witnesses knocking on doors is an absolutely known thing in Germany.
… and the UK
Though they usually just send letters these days, I was taken aback when an in-the-flesh god-botherer knocked on the other day