Now lets run!

Now lets run!
A gentleman very well dressed, very elegant goes walking down the sidewalk when you sees a kid trying to ring the doorbell of a house, but the doorbell is too high and the boy can not reach. He you approaches and asks:
- Can I help you?
- Yes you can. Can you please help me ring the bell?
- Sure.
He raised the boy by his arms and the boy rings the doorbell. Then the kid says:
- Now, let's run.