Golf is a game of stragity, that being said when someone is getting ready to take shot or putt, there are usually alot of things that go through someones head during the time he/she walks up to the Tbox, sets up his ball, takes a couple of practice strokes, looks down the fairway to analize where to attemt to put the ball so not to get into trouble. The addressing the ball, making sure your feet, shoulders and grip are correct and making sure your the right distance from the ball at contact. Same with putting, analizing the green on which way the greens slope to the hole, looking at where and if there is a break when you putt, on a downhill slope, are you going to hit in the middle of the club or hit on the toe to take speed off? Those are the types of things that go through a persons head in just a minute or so before taking a shot or putting. One cough, one rattle of the clubs in someones bag or a camera can unravel someone enough to miss their shot.