My gun buck this year did exactly this.went just over stone pile which seperates the property and dropped feet from it.i did look to see if the neighbor was on the hill as i would of asked out of respect but he wasnt so i got my buck on our property and went to work gutting.id expect him to do the same.if he shot one and it fell onto the property id point out where it is(if i saw it) and congradulate him on the harvest.hoping he would do the same