I think this all the time. Try going in pitch black with a picher of water, a flashlight, and a bowl. As you pour the water in to the bowl shine the flashlight across the water. It will move sightly with the light.
That's rude cause everyone has been a kid. Kids aren't monsters, they just go through their phases. It bothers me how people think kids are "annoying" in reality they are just little bundles of joy who need love. kids are just kids!