I played this last Sunday and on #14 my ball came to rest on the fringe just behind another ball.  Bill's ball was about three inches in front of mine and directly in line with the hole.  I couldn't hit my ball because it would hit his and there wasn't anyway for him to hit first because my ball was too close.  Now I know that you are not supposed to lift the ball unless it is on the putting surface, but in this case what is supposed to happen.  Well after some deliberation he marked his ball and I putted from off the green.  Now this is where it gets kinda funny.  My ball actually hit his mark and moved it forward onto the green.  After having a laugh about it he replaced his ball as close the original position as we could remember.  We were not playing in a tournament or anything like that, just a Sunday game with friends but we do want to follow the rules of golf.