But do you know, game companies employ psychologists to design games, levels and action sequences in a way which increases the adrenalin in your body (and serotonin, i guess) which pumps and pushes you to play without stopping??? Its the game developers to blame in those cases. Also, the same principle is used in Casinos (well, its where all started from). Are we going to close the Casinos?? or put in asylum the addicted poker players or casino gamblers??