阅读短文，回答问题

One day, an old woman is walking in the street. She sees a little boy trying to reach the doorbell(门铃). But the boy is so short that he can't reach the bell. The old woman is a kind(善良的) woman, so she says to the little boy, "Let me help you." Then she pushes(按) the bell so hard that people can hear(听见) the bell. The little boy looks up at her and says, "Now let's run away. Come on." And then the old woman knows what is happening. The naughty(淘气的) boy runs away.