Concern of a friend from the neighborhood's evangelical sister:

"Incest babies."

I've met her once before years ago when she had visited once, and I saw her again at another party recently when she was in town visiting again, and me and her started talking about cult memoirs.

(She seems to read fundamentalist Mormon "escaped wife" polygamy memoirs, since they seem to confirm to her that mainstream LDS Mormonism is somehow false.  She said she reads Muslim memoirs like that, too.)

Anyhow, when we were talking about the escaped wife memoirs, she mentioned how you can just look at some of the wives and the kids and tell that they're "incest babies," since if you know what to look for, you can tell it.

She then said that that happens, too, with a lot of "urban" families, where guys come through and get all these women pregnant and they all have his kids, then those kids meet and have kids, but they don't know that they have the same father, so they end up having incest babies.

. . .