Flying out of Denver TSA was having an issue with something in my bag, and left me in the "holding pen" while they kept pulling things out and running it back through. I rarely get irritated about these things, and tried to be helpful by offering suggestions to the agent about things it could be-
Bike shoes? No.
Huge laptop charger? no.
Agent: "It's a baton or something"
Me: "Front flap, its a kubaton keychain"
Oops. now, it IS on the TSA prohibited item list, so thats my bad, no arguement that I should have been on top of things (I got out of MSP with it- in fact, have traveled with it several times).
Thinking about it, these were acceptable. Couldn't they do just as much (more?) damage.
So, what weapon would you want in a fight, a kubaton, or a bike shoe?