When it comes to in-laws who won’t shut about how they would handle that diaper rash or the pea-throwing or nap time, here are 3 strategies that might actually help: Express sincere interest in what they did when your partner was a baby. This indulges their belief in their own parenting prowess while distracting them from your own kid. Conversely, you can just straight face them – don’t respond with anything but a silent, level stare. There’s really no reasonable response to this one beyond retreat. Finally, and in both cases, make sure you and your partner present a united front. Whatever her relationship with them, in this particular instance “family” means you, her and the kid. Everyone else is just a visitor.