Not on purpose... About two hours ago I was playing tug of war with both Merlin and Gemma the Hell Bitch. I had a tug in each hand, one dog on each tug. We were having a good time, then Merlin decide to hit the other tug. All of a sudden, he let loose of the tug in my left hand and grabbed the tug in my right hand. When he let go it kind of threw me off balance. And when he grabbed the other tug it twisted my wrist in a funny way. I felt and heard a pop. Two hours later it still hurts. Pretty much curl your teeth hurts any time I move it. If it doesn't feel better in the am, I will probably go to the walk in and get it xrayed.