I am glad you are not seriously hurt, or worse. It's all a matter of time...if we are out there long enough, our "luck" will run out...can't beat the law of averages.
I know this all too well....yesterday I was pushing a tree beside a house...and my chopper cut too much...cut it about completely off the stump...I panicked and tried to push it away...but to no avail.
Right dead center of the house. BIG tree too.
I got lucky in a way though...the house is an A frame...very strong. Tree snapped, and the butt end went through the roof at the bottom.
I am into it for around $2200. My friend is a pro builder, and he was on site within an hour..
Damage is minimal, considering how big the tree was and what could have happened.
First time in 20 years of doing such things..
Be safe everyone.