I liked what one of my heroes, Johan Norberg, attributed to French trader Jerome Kerviel, on the subject of a “mistake” that cost Kerviel’s employer $7.1 billoin:

The problem is that the bank never says, “Attention guys! The money you’re playing with is not virtual. At the other end of your computer, there are real people, with real lives, pay attention [to] what you do, you could do something very bad to them.”