I had a cousin do that, bent his iron shaft, then hit it against the golf cart roof support snapping it off and the head with broken shaft whipped around and punctured his jugular. he died minutes later.
Best to find a different outlet for your frustration.
Did you see which direction the head went? Could've have been very serious for anyone in the area.
It's a shame these guys only make a few hundred thousand a year.....not!