That's what my relatives believe. I play tug of war daily with my dogs. And I don't understand how it can make them mean! Any ideas? Has anyone ever heard of this? They heard Ruckus and Lynn growling and really putting on a show during tug of war and they said "See, you are making them mean!" I think this is just ignorance on their part, but I didnt know what to say back other than "No, its not" so what does, or doesnt tug of war make a dog mean? when we play tug, the game starts and stops when I say. We all take turns winning and losing. The dogs never bite my hand by accident, even though I do play with both dogs at the save time. I can take it away from them when I ask for it with no problem.