Don’t Lose Your Grip
Never take either hand off of a running saw. If the saw kicks back, there’s nothing to stop it. Use an encircling grip with your thumbs wrapped around the handles.
Don’t Attempt Cutting Down a Rotten Tree
Leave rotten trees to the pros. If the heart of the tree is rotted out, the felling direction can be extremely unpredictable. In addition, it most likely has many dead limbs above that just might shake loose and land on you during cutting.