Two herd bulls really going at it is something to behold.   Even the area afterward.   Ive seen a fight ring that looked like the outside was burmed up with a cat.
I recall showing Idabooner one, and along side of it was a huge pumpkin pine.   In it was a tine shoved into the treeabout 6-7 inches and broke off.   Can you imgine the force necessary to shove a tine into a tree that far and then break it off?