The rite of childhood is eating freshly fallen snow. I felt a little bad for letting him eat it since I knew how bad the eair had been, and all of that dirt and smog had been captured by the snow, but he was so excited to eat a "snowman ball" I didn't have the heart to stop him. He eventually took it inside to show his daddy, and refused to throw it outside. I eventually got it away from him and plopped it into the sink to finish its job of melting. Of course by this point it was significantly smaller than it was when he brought it in. Oh well.