Reminds me of a friend who had a young daughter (2 years) at home, and came out with us one night.
Acquaintance of hers, "Where's [Little Girl's Name]?"
Friend, "She's at home with her father."
Acquaintance, "Ah, you got [husband's name] to be on babysitting duty tonight, I see."
Friend, "He's her father. That's not called babysitting. That's called taking care of your own kid."
Now, guess the likelihood of assumption by the general populace, of a mother staying at home watching her kid, while the husband has a night off with his buds, and people thinking that the mother has sacrificed on behalf of the father, by 'babysitting' her own damn kid for the night.
It's as harmless, yet insidious, as that.