I have lanyards on everything. Usually they're bright orange or yellow. The main reason I have them on there is if I lose track of the knife in the woods somehow, I'll be able to see it easily. The second function is for keeping it from flying out of my had and whacking me in the d!ck jugular. (I coined this phrase when my father had a heart catheter. We were joking that if he worked himslef too hard, he might pop his dick jugular. What was really funny was that he did work himself too hard and did have leakage which formed a HUMUNGOUS bruise on his inner thigh and he freaked out when he saw it in the shower. Now the really funny part is that, in his panic, he couldn't figure out what to say. He yells to my mother, "Debby, come in here! I think I ripped my... d!ck jugular!") The third thing i use a lanyrad for is for securing it to me, much like Brian said. If I'm going to be using my folder or smaller / medium FB in an area or position where I think I might lose my grip, drop it, etc. I tether it to my belt.
