Monkey see, monkey do. It happens. If she wants to avoid that for her child she'll need to either stay home with her or hire a nanny. Then again it could just be aging into this phase (mine started their "terrible 2's" around that time.) Probably a combination of the two. You'll never know for sure. Like another poster said this should be a passing phase as long as parents/caregivers don't tolerate or reinforce the bad behavior. Just work through it together and all should be well. Good luck.

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