Joseph: I don't know.
Me: It looks like he fell down. Did you push him down?
Me: Did he just fall down by himself?
Joseph: Well, I pushed him, and he fell down, but I didn't push him down.
And now we can begin to understand this quote from Wang Haidong, a family planning official in China: "The family planning policy, as its name implies, allows planned reproduction. It does not ban anyone from reproducing."