I had this happen once. But this was an afternoon setup so daylight and on private land that only I had permission to hunt. I walked in and “thought” I heard a whistle. Stopped, looked around and saw nothing. Headed about 20 more yards to my tree, freshening up a scrape on my way and thought I heard it again. So again looking around and passed it off as a bird. Hooked up to the tree and up I went. Pulled my bow up and set it, pulled my bag up and set it. Got my water out... looked up and this fella was no further than 15 yards across from me facing me, the deer trail between us. How I didn’t see him on my way up I don’t know. Why he didn’t say anything? I am assuming because he knew he wasn’t supposed to be there So I “whisper” across.... seeing anything?
he laughed and said nope. I said too late to move, which way do you think they are coming from. He pointed to the left and I said anything from the left is yours, anything from the right is mine. I would like to end the story with success but we didn’t get anything.