First I need to say that "Tug" is the favroite game!
We had him in day care a couple days when no one was going to be able to get home for 12+ hours, and I watched him on the web cam play tug with another dog, he kept bringing a rope over to a lab until he grabbed the other end!
When we are playing he will occassionally "growl" but it is really more like a grumble, and he will "Drop It" and "Leave It" when we tell him. But he is constatly bringing us toys and "asking" us to play tug.
My problem is that I am getting contridictary advice. One of my books says you should ALWAYS win when you play tug and once you win and are done you should take the toy and put it up and give him another toy instead. One of my trainers said that we should intruduce the command "pull" when we play. One of the trainers assistants we should not play tug at all!
So what is the rule? I have started playing a lot less Tug because I am afraid it is bad for him. (He pulled a couple of his milk teeth by tugging so hard
Now he has his real teeth...)