You will do it competely without realising it and yet, never admit to it. You have a basket of groceries in the supermarket and have 7 items in yours. You stand in the queue for the "10 Items or less" and start looking at things in other peoples basket... then you start counting their items. next time you are in that position - from now on you will start counting the other person's groceries... I know I do but would never dare say anything if they had 11!!!!
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