We had a couple of deer near our mine palisade, so we decided to trick them into entering the palisade so we could pelt them with stones. One guy threw a rock at a deer from within the palisade and stood near the mine hole while the palisade gate was open. Oddly enough, the deer was too stupid to go around the wall and into the gate (of course, they only have bad pathfinding when you WANT them to go somewhere). We decided to start over and try again, so our guy went down the mine hole to deaggro it. Then something peculiar occurred... I saw the deer kick dirt up as if it was attacking something. Our guy said he had just been attacked by the deer's hoof. He came outside and properly deaggro'd it and all, we carried out our plan and killed the deer.
Anyhow, it attacked him from a different level (and from a distance? I dunno if he was running around down there)... hax.