I always consider a hunt where I see deer that I could have taken, but let walk a success. I have had deer that were so close I could have dropped my gun on my head that I let walk because I wanted to watch them or I didn't feel like harvesting them. I don't know about everyone else, but there are times when I wasn't in the mood to shoot them, I just wanted to be out there and watch them. Other times something just didn't 'feel' right so I put the gun down and watch. Some may consider this a failure, but I have always considered this a successful hunt.