My life on the edge. Field Editor David E. Petzal can measure his life out in blades. Experience six decades in the outdoors told through four special knives. Petzal shares the stories of the beloved Ka-Bar he received as a 10-year-old, the "Yankee Gut Hook" that he crafted with an exquisitely talented maker, the well-worn favorite of a dearly departed hunting buddy, and one that was lost for 30 years but miraculously found again in Greenwich, Connecticut.