As an animator, two of my colleagues were once given a deadline one night to complete a 3D animation about activities on a mining project. It took so long for the computer to render the animation for only a few tens of minutes, my friend stayed in the next room, leaving the computer room which was their workspace. They fell asleep while turning off the lights of both rooms after they locked the entrance door.

They sleep in their boss room.

A few hours later, one of my co-workers woke up, saw the clock was 2 a.m., then woke up the other colleague.

“Wake up mate, wake up!”

My co-worker woke up reluctantly and asked why. After a while my other co-worker continued.

“Do you hear that?”

Both can really hear, clearly, that from the dark and empty computer room, there are so many children play so cheerfully and run around.