At some point one of the kids bumped their head. At another point in time Mason bumped Norah on the head and got a timeout.
Now Norah will be playing with a baby doll and she’ll deliberately nail the baby’s head into the wall, cabinet, bed frame whatever and then say in a very concerned voice “oh baby hit head!”
Usually this ends in a little cuddling on Norah’s part but occasionally the baby gets a timeout.