My old house round the corner, had two new next door neighbours move in a couple of years ago. Nice couple. Husband and wife. Bit boring, but very pleasant. Good neighbours. Often saw them walking their dog when I was on my way to the pub, but never saw them in there!
And one day my girlfriend met them, and said she thought they were Christians. Not in an especially pejorative way, but maybe not everyone would see it that way tbf. Hadn’t spotted it myself, but it sort of made sense when I thought about it.
A couple of days later I see the wife get out of her car, she’s wearing a dog collar! Tried to look nonchalant when I spoke to her, but I doubt I pulled it off!