N. Drew,
When Mormons are 'door knockin' they wear bright white shirts, black coats, (unless it's really hot), black belts, shoes, pants... sigh. O' and they rode bicycles and locked them to stop signs and such !
When I was a 'true believer' and Reg. Pioneer in the years before Armageddon -- we occasionally had amusing encounters while 'heading to the next door' -- only to see the Mormon missionaries headed towards us -- and, the very same next peaceful victims home !
It felt like an old Italian Spaghetti Western -- a showdown ! Damn lucky for the householder, eh ?