Part of the fun of being a parent is getting to watch all the stupid stuff your kids do when they're little and don't quite get it yet.  And here's a good example.

There's a video on YouTube of a little girl trying to fill her cup at a water cooler.  But she can't figure out exactly where the water comes out . . . because she thinks it comes directly from the little thing you push down on, not the actual faucet.