Originally Posted By: aligator
... what about a walking stick or cane? ...
They, are the only weapon that doesn't need to be accessed or drawn to be used, they are already in your hands.
They are legal anywhere.
They are not viewed by other people or the constabulary as weapons.
They won't collapse on you at an inopportune time. ...
My favorite "urban weapon" for exactly the same reasons.
If your in a situation that requires a weapon, odds are you will not be able to bring the weapon to bear unless your well practiced and the weapon is carried in some sort of combat rig.
The Unbreakable Walking-Stick Umbrella, and Cold Steel's walking sticks.

CMC fnord!