Is it good etiquette to say something to a player in your group who displays poor etiquette ? My last round a certain player continually stepped in my putting line after he putted. In the past I have said something and the offender instead of apologizing actually acted insulted as stepping in one's line is not going to make any difference. Same thing has happened when asking a player to mark his ball when I have had a long putt, say over 30 feet. The player asked seemed to be annoyed as the chances of holing out a putt this long is slim to none. Another case is when a player is about to violate a golf rule, e.g., not replacing a ball back to it's proper postion after re-marking on the putting green after being asked to move the mark for a putt, teeing the ball up in front of the tee markers and asking the slowest player in your group to pick up the pace a little. The slow player takes many practice swings that resembles a robot, stays seated in the golf cart until it is time to hit the ball, has no clue where his ball goes when struck and then wants to give golf tips and advice to everyone else in the group.