I used to babysit... The last time I did the little stinker walked out the door and got half way down the block before his dad ran and grabbed him.
Wasn't my fault though, my damn sister came to see me, God knows why, and she left the door open. I wasn't watching the kid because I thought he was downstairs with his dad, like he had been for almost the whole time. I never babysat again.
Please don't tell my future wife about this incident or she may reconsider.