i would say its ethical! he knows its not legal to keep it out in the woods. if he doesnt want you to then he should of taken it down. Plus if he left it there, where ppl can see it, i doubt there's a big buck there anyways. I've encountered these situations a few times. once there were corn spread out used as bait. i was pretty ticked. another time this guy had his name on it. thought that was hilarious.