Needed to clear an ice-damaged hanger (4 inch diameter tree split by last year's ice storm.) Anyway, I started yanking on it as the piece was hanging about 6 feet off the ground. Piece comes down flips around and nails me right on the side. Sat down for a few minutes, saying to myself "that's gonna leave a mark" in addition to a few unprintable expletives. Went on to my chain-sawing and that was it. Don't want to think what would have happened if I got hit in the head.