I got a nice score of free Ash, about 1.5 cords. It was already on the ground and just needed bucked and loaded in the truck. While I was bucking the main trunk my saw started to rattle and sparks flew. I knew something bad was in the tree at that point. My chain was messed up bad. Turns out there was a chain inside the tree! From the growth rings it was about 40 years ago that the tree grew around it.