I'd say that you should have just kindly asked him not to walk in your line. I don't see the problem with a new golfer not knowing too much about the way that the game is played. I'd expect the same thing if I went and played another sport.
Hey!
I'm a junior golfer who's been just poking around these fourms and now just wanted to get to post. I'm hoping to drop the handicap below 5 this summer, but untill school ends, that's going to have to wait.