OH yes it has happened to me not once but twice. Once we were on swamp buggy and the buck fell off and got run over by the rear tire. Keep in mind these are big tractor tires.
Another time I had the buck tied to the back of my horse. all of a sudden the deer slips down the side of the horse. The horse freaks out kicks the rack I did all I could to hold on.
On both occasions the taxidermist fixed the racks. You could not tell anything had ever happened to them.
Congrats way to go on your double.