A man stands on a ladder and uses a chainsaw to saw off part of a porch roof/awning. The wood beam the man cuts hits his ladder, he falls, flips and rolls off the porch with his legs bent over the back of his head. Security camera.
A man stands on a roof and saws branches off a tree, then a branch hits him and he falls.
A man in a yard cuts down a tree with a chainsaw while on a ladder. At around 0:35 the tree falls and pulls him off the ladder and he flips over and falls down.
Man using a chainsaw cuts down tree. It falls, man holding rope tries to run, knocked down by falling branches.
Boy destroys a snowman with a chainsaw. Winter, snow.
Man cuts limb off tree, it cracks, knocks him off ladder.