I told him a story I read in the W. Post (some years ago) about a two-headed buck that someone had killed bowhunting. Apparently, the buck had killed another buck, been unable to unlock antlers, and cut the other buck's head off with its hoof. Then it walked around for a couple of weeks with its dead foes head as a hat.
Animals are tough. My friend never followed through on his plan
A friend did just that.
He was out in the forest, and climbed a tree just to annoy some birds. He saw a deer wander by and stop right under the branch he was on. He pulled out a knife, dropped out of the tree onto its back, and killed it (while getting thrashed around and mildly stabbed once in the foot by an antler).