Same thing happend to me a couple years ago. I was curled up in a fetal position trying to breath into my coat. He was standing there trying to figure out what I was. The more I thought about how big he was and that he was 15 feet away just staring I began to really breath heavily. I was practically bounceing. Eventually he ran off, then later that season in a tree I screwed up on him again. Last time i saw him. I used to wear a scent lock fack mask which helped a little bit, but if it was really cold it would get soaked from my breath after about a half hour. It did cut down on the fog though.