Action: What are potential hazards of bark inclusions when working in a tree? Leave a comment to mark the lightning bolt action as complete.

Thank you @Nathan Sanner for the invite. A bit about me, I have been a Coal Miner, equipment operator, mechanic, welder, and a Marine so far in this life. I am father of 2 and a husband. I enjoy nature and being outside hunting and fishing. I grew up on my grandparents farm near Bando Crossroads in Somerset County. I am a bit older than most of you being nearly 40 but have begun to fall in love with the idea of learning arborist work and have the drive to learn to climb. @Tim Shawley is it possible to gain access to the TMP course before hire?