So one day satisfying my kitchen knife pr0n urges, I ran into this: Just curious, has anyone used this? And what in the heck for? 'Man, breaking down that truck full of carcasses was rough, and my edge has gone dull. Oh wait, lemme just flip the blade over, hell yeah!' 'Today we are running a special on halibut, we're 86ing the chicken because the protein has turned, and... we're being invaded by vikings, but no worries we just received a shipment of double-edged cleavers.'