Had the same thing yesterday morning.got out of stand and noticed a spike that had snuck in behind me at 70yrds.dont know how he didnt see me first off.he went out into the field as i got into position i grunted.just looked and kept grazing.jumped him as he went to bed down and i tried to sneak around him.got down fast and grunted more.watched him slowly walk off as if nothing happened.weird for sure