In the opening game of a new NFL season, three Dallas Cowboys players learned that moments of aggression and showmanship carry a price beyond the scoreboard. The league fined them a combined $33,409 for infractions that did not merely draw flags — they altered the outcome of a 28-20 loss to the New York Giants. It is an old lesson in sport and in life: discipline is not merely a rule imposed from outside, but a condition of one's own effectiveness.