I was watching, amused, as two girls had a tiff over one of the activity boards. One of the girls stood up and made to walk away. The other girl said something I couldn't make out. The girl who was standing turned around, put her hands on her hips and declared loud and proud, "Don't care, grumpy bear!" then she stormed off in dramatic four-year-old fashion. That's a great line. I'm using that in any future tiffs or argume...