I would imagine the coupler wasn't secure to the ball, as well. I suppose the only "good" thing was that it was a little boat.
[video=youtube;NgNUHmaplyY]https://www.youtube.com/watch?v=NgNUHmaplyY&feature=youtu.be[/video]
[video=youtube;NgNUHmaplyY]https://www.youtube.com/watch?v=NgNUHmaplyY&feature=youtu.be[/video]