Everyone has at least one of them. Some guys marry into money. I married into a family of hunters. First night in the camp house and first time to hunt with my wife's dad and uncles. Before we all hit the sack, one of them told me to put some more wood on the fire. It all looked the same to me, so I grabbed a half dozen or so sticks and put them in the fireplace. It wasn't long before the fire was blazing, and guys were throwing off their bedcovers. That was the night I learned about lighter knot.