Seriously though, widow makers are dangerous. If falling a tree, at least wear a hard hat. Cover that noggin. What worries me more than anything when I'm cutting wood is kickback from the saw. Especially when using a big powerful saw.
Felling trees, cutting firewood, clearing trees and brush is all just dangerous. Just need to really know what your doing and be careful. Living in the highest elevation east of the Mississippi, in the Blue Ridge Mountains, we have burned firewood most of our lives. We are lucky to be eat up with hardwoods. Nothing like good dry locust to use as fuel. My dad was the best free feller I've ever saw. Lol, we've cut a many over the years. And, it's been dangerous too. Got to know what your doing. I remember him cutting his knee with the saw once. I think the saw kicked back on him. It was a clean cut, but man it's a nasty cut. You should've seen the wood chips and saw dust boil out of the cut, when he layed the hydrogen peroxide to it. Nasty.
And, btw, ain't NOTHIN cuts like those big Huskys
Actually, he used a Jonsered 2094 on the big trees ( Jonsered is pretty much the same as Husqvarna)