When you're so bored that you go right to left on the middlerow on the keyboard, left to right on the middle row, right to left in the middle row, right to left on the top row and finally left to right on the top row.
you have to be so bored that you had totype mnbvcxzasdfghjkllkjhgfdsazxcvbnmpoiuytrewqqwertyuiop