Kevin Na is extreme and I have had the occassion to play with players as slow and/or with distracting waggles, dances etc. I play with one guy who stands over the ball for so long I beginning to think he is narcoleptic. I do however work hard at ignoring such distraction and will have to admit it took some work for me to learn to suffer in silence when experiencing a bad round; which I am certain was distracting to others. All in all I enjoy golf and hence enjoy playing golf with anyone who also enjoys the game dispite their distractions