My NDN invited me over for coffee this morning and a woman I've never met before was telling me that she washes her DH's underpants separately from the rest of the washing, as she "doesn't want her stuff to be contaminated with his pants".
They have children, so it seems that she's been "contaminated" by contact with her husband's body more than once in her life.
AIBU to think it's weird? I wash our clothes together. I thought everyone did.