Well, they got americans on the development team, so they have been thinking that. I think the best warning text should simply say "Don't play this game!" when you start it up.
And while we're on the topic, I remember this cellphone game I had before my cellphone broke. You were supposed to shoot yourself out of a cannon and hit airplanes or get hit by the lightning, and land by crashing into a cactus, cows, and oil barons. The game started out with a warning that you should not attempt the stunt for real.