Wow ... I learned something in this thread.. I always thought the premature breaking down of one's cue was a sharking move. I'm not a tournament player but play against many at a private club. I can hardly wait to not take the final shot and say, "thanks for conceding."
Don't say 'thanks,' but just stand up from your final stance before shooting and put your hand out and say 'good game/match' without blinking then walk away while unscrewing your cue, too.
Jeff Livingston