The game is simple:
You have a six-shot revolver. One chamber is loaded, the rest are empty. You do not know which is which. If you put the gun to your temple and squeeze the trigger (and survive), you will receive $1 million. You will receive a further $1 million for each successive squeeze of the trigger, up to a possible $5 million. Or you could blow your brains out.
How many times do you squeeze the trigger?