Looks like this guy somehow was able to see an unclean spirit walking the earth seeking someone it could use for its purposes, but the guy did not qualify somehow, so it sighed and walked on.
//…My son and I was bow hunting… I began to search the woods to see if someone was in the area when this large black figure appeared walking down the other side of this hollower I had set up to watch. At first I thought this was a man. But as it kept walking I noticed how massive it was, and all of a sudden it stopped and took two steps backwards and turned and looked straight at me.
It was then I realized that this is not a man but a Big Foot. As this creature looked at me, I could clearly see its eyes and nose. I could see flesh around its eyes and cheeks and also see hair covering its face as well. It stood there looking at me for I guess a good fifteen or twenty seconds, then turned and walked on down the ridge and disappeared into the woods… This creature was at least seven and a half or eight foot tall.//
–BFRO 56614 http://bfro.net/GDB/show_report.asp?id=56614
Matthew 12:43 When the unclean spirit is gone out of a man, he walketh through dry places, seeking rest, and findeth none.
(The photo is a night vision image from BFRO of a different sighting, 55249, the latest posting on their website.)