I live in the ex-urbs and like to run on rural roads. It's not unusual for owners to allow their dogs to run lose. While I've never been attacked, not all the dogs I meet on my runs are friendly. I often carry an old Delica 3 with me while running. At 1.9 oz clipped inside waistband I don't even notice it. I prefer the Delica 3 over the Delica 4 for this particular application because of the lighter weight although I have on occasion carried a gen 3 Endura without any problem. I like having a blade with me because you never know when there will be a piece of string that needs to be cut or a cardboard box opened. Does anyone else carry a knife while running/jogging and if so what kind? Below are some pictures of my old Delica 3.