What would you do? **UPDATED**

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What would you do if you caught a family member breastfeeding your child without your prior consent?
I stumbled across two crazy stories, one about a MIL and one about a SIL. Here's the MIL story...
Would you go off on her? Would you press charges? How would you handle it afterwards. In this case the husband didn't want to press charges against his mom, because she's family. 
UPDATE: Granny was not lactating, btw. She was using her bare nipple to soothe the baby. 😷. I'm pretty sure I would lose it. And she would lose visitation rights for a long long time.