Many years ago--before he even began training in martial arts, I believe--Mr. Hartman and I were examining a truly intimidating-looking knife that had brass knuckles for a grip and a small spike on the punyo. This was a weapon! Still, I thought then as I do know: It could be hard to disengage myself from that weapon if I needed to do so. The thought came back to me as I played with my recently acquired kerambit folder: It would not be easy for someone to attempt a disarm against it, but if they did, I'd have a finger stuck in the hole. I've heard of people getting their fingers injured in the trigger guard of a pistol when it was taken from them, so I know it's a possibility. In addition, it might happen that I might need to disengage from an edged weapon quickly for some other reason; perhaps the blade has become stuck between the opponent's ribs but another opponent is coming at me. I don't feel good about not being able to rapidly release the weapon if needed. Yet, I've also had a knife come out of my hands in knife sparring sufficiently often to make that a concern too. As a practical matter, I feel I'm more likely to lose the blade when I want to retain it than to be stuck in it when I want to drop it, let alone the dangers of the hand running up the blade on a stab, and so I feel some sort of retention device is probably sensible if it's a small-to-medium knife. (With a large knife I can get a healthy, sword-like grip that allieviates some of the retention problem.) It's so easy for a small knife to be twisted nearly out of one's hand if it comes up against something that resists it while slashing. A lanyard, to be wrapped around the wrist or in the hand, seems sensible to me, striking a balance between weapon retention and ability to discard the weapon. I don't actually do that, nor do I worry too much about the kerambit leading to a broken finger in a disarm...but, the nagging thought of it is there. What do others think about the need to be able to disengage your grip?