I clocked my niece with a pillow, mostly because that's what you do in a pillow fight; it knocked her off balance. It wasn't a normal pillow fight, we were throwing the pillows at each other. She tried to regain her balance by taking a quick step to the right, right on top of a different pillow. She didn't manage to regain her balance and her chin, along with the rest of her, hit the floor.

"That will teach the little shit to pillow fight with me," is what I thought while she was crying but she came back for more two minutes later.