I told her she couldn't touch the window with her greasy fish&chips fingers, so she asked me if she could use her elbow. Sure. I wonder why you would want to do that, but okay. There are all kinds of things I have no idea why you would want to do, except that you are a crazy two year old who just needs to do certain things. So I try to be creatively flexible and say yes whenever it's reasonable.
And mmm, the fish&chips place at Hollenbeck & El Camino is yummy. :-)