When someone grabs your shirt or jacket, take your right hand and grab the back of his hand. Rotate his hand so that the edge of his little finger is horizontal and then rotate your arm pit over his wrist and quickly go down on one knee. After he is down beside you, put your left hand on his elbow and swing him toward your left knee, causing him to stretch out, face down in front of you. Lift his arm, put your left hand on his elbow to steady his arm and push the back of his hand down so that his fingers pointing down to his back.