I like that "peaceable person" idea. That is basically how the great state of Illinois treats knives. There are some types are are specifically illegal (daggers, switchblades), but beyond that so long as its not used in a crime (my words, not the law) you're good to go ... except for places where they are specifically forbidden, such as public schools and courthouses.

If someone uses a gun, knife, or a pitch fork to aid in a crime, I'm OK if they throw the book at them.