You're a linebacker ready to rush the opposing kicker to try to block his field goal. You break through, but not fast enough; the kick is good and you end up barging into the holder instead. Suddenly, the kicker is in your face, pointing his finger at you, shouting at you. He's not going to let you get away with taking a shot at his holder. Not this kicker.
Maybe you're a wide receiver looking to return a punt. You're standing near your own 35-yard line because the ball is being snapped inside the opposite 10-yard line. Surely, the punt won't go more than 70 yards, you think.