Two years ago I was sitting in my treestand about 22' up in my camo that was freshly washed with UV blocker. A big nine point walked up headed right at me. Ducked under a branch and look up right at me. Right before I could loose the arrow, he turned and bolted. I was already at full draw so he didn't see that, there was a slight wind blowing at me coming from his direction so I don't think he winded me. He just seen that something wasn't right (Thinking about it now, I think I may have been silhouetted). Prior to using the UV blocker and only being in a tree about 15' up I had a five point within 10 yards of me for about 10-15 minutes. Looking in my direction a few times with out spooking.