Hands… up or down?

My four-year-old brother wants to know if he’s supposed to shoot them when their hands are up or down. We’ve had this problem before. He points the gun (perhaps a banana) at someone and orders,…

Interruption costs

The other day, I asked some friends online how much time they spend interacting online. In response, someone said they tweet throughout the day and since it only takes about 20 seconds per tweet, they…