Threats

We were out of drinks and we were on the highway and hadn't seen a rest stop in a very long time. 
Soren: Mom, I'm thirsty! I need a drink! (This was repeated 20 times or so.) 
Me: Soren, if you ask for a drink again, I'm going to throw you out the window.
Soren: (Two seconds later) Okay...Mom, can you give me a drink?

The power of empty threats.