Never lay down KK pre-flop unless the situation demands it, like in a sattelite where x amount of players win seats and you're the second biggest stack. There are several shortstacks waiting to bust out and you look down at KK. The chipleader goes all in, FOLD. Even if you have AA, FOLD. The point is not to win the tournament, it's to win your seat into the event. Online especially, it just doesn't pay off to fold KK pre-flop. Sometimes you'll be right, but usually it will be somebody with QQ, JJ, AK, etc. If you run into AA, then you're just extremely unlucky. If I had 300 BB and so did another player I would be more anxious to see a flop than get all my chips in the middle pre-flop.