What you found sounds like from previous owners. Pocket knives can fall out of your pocket and end up on the floor. they can move around inside a glove compartment and end up where they don't belong. A "3" double edged dagger" sounds like it's for protection. It's not that big but it could be illegal in some states. EVerybody carried a pocket knife when I was in high school back in the 70's. SOme guys had a shot gun in a rack behind their head in their pick up. I'm sure some had a small baseball bat or club under the seat. Just in case they needed. Hell now days half the cars cruising down the road have a loaded 9mm in the console. It's just a thing.