Everyone puts their money in the box of flashing lights. They soon run out of money. They get some more money and because the box hasn't given them their money back they put more money in it. It's a laughing matter. Eventually the maximum amount of money that the box will ever give back if it feels like it which it nearly never does is less than the total amount of money everyone has put into it. At this point they put money into it in small amounts although they have agreed not to. One person tells another one off for doing it and hours later the person who told the other person off is at the box again doing the same thing. Sometimes a person who hasn't put any money in the box comes along and starts putting money in the box. Then everyone gathers in a hush to see what will happen. What will happen is that this person will put all their money in the box and leave. The behaviour of the box is very predictable and no one can predict when it will become unpredictable. It doesn't ask any questions but it does offer some choices like whether or not to associate flashing lights with disappointment. It has never pretended it doesn't do what it does.