Scary stuff. I am well aware of the dangers, and like to think I am always vigilant, but all it takes for a disaster, is a micro-second of inattention.
I always feel safer when using a saw with a longer bar, and on a difficult cut, never put the saw into the wood until it is at cutting speed. This lessens the chance that the teeth are going to grab and toss the saw back at me.
I have been putting off buying a new pair of chaps, but the pictures have convinced me to get my butt in gear and purchase a new pair.