A boy sits on one end of a log and a man stomps on the other side to break it and it doesn't break. He jumps on it and the boy gets launched up and the man trips and falls backwards.
A man chops wood with an axe and a piece flies off and hits another man in the stomach.
A boy sets a large stick on a tree stump in a campsite and stands over it and drops a rock on it. The stick breaks and the part that he stands over flies up and hits him in the groin.
A man outdoors saws a log off of a tree, and the log lands in a truck after the tree tilts back upright. Another man is audible.
Man chopping firewood with rock, drops rock and log goes flying up and hits his adult son in the face *really good in slo-mo - audio is good in slo-mo too*