No one plans or intends to have an accident with a chainsaw. I wear protective gear: full wrap chaps or chainsaw protective pants, and a helmet with hearing and eye protection. A few years ago, I added Haix chainsaw protective boots - our county forester almost lost his foot in a chainsaw accident. I figured if it can happen to him, it can happen to me. I've never had an injury, but that doesn;t mean it won't happen. I fell a fair number of trees each year for my own use (mostly firewood, the occasional sawlog for a special project), and helping out others clearing trails, cleaning up storm blow-down, and harvesting firewood for our local firewood donation program.
There is a reason that logging is one of the most dangerous professions in the US. (As a reflection of that, Workers Comp Insurance rates for loggers doing hand cutting in Vermont can run to 100% of their wages: so for every dollar an employer pays a logger, he's paying another dollar into Workers Comp insurance.)
I decided early on in my chainsaw usage that I wanted to be around to see my kids grow up and have full use of all my limbs while doing so. So I wear the Personal Protective Equipment (PPE), and I realized there is more to felling a tree safely than what is on the little book that comes with your chainsaw (or what your more experienced neighbor is likely to tell you), so I enrolled in some chainsaw safety & efficiency training (
Game Of Logging). Yeah, sometimes it's a pain, and it can be hot to wear that stuff in the summer, but it beats a trip to the Emergency Room.