It’s so frustrating trying to explain to my daughter not to lean over the babies head. Yesterday she…

It’s so frustrating trying to explain to my daughter not to lean over the babies head. Yesterday she slapped her head by accident twice, while she was in my hand & today she dropped deodorant on her head, while she was in my hand again. The baby didn’t cry so I know it wasn’t hard enough but still, it’s very frustrating cause she doesn’t understand.