All of `fortune -m Californian` is worth reading (and probably mostly dated).

  (riddles)
  %
  Q:      How many Californians does it take to screw in a light bulb?
  A:      Five.  One to screw in the light bulb and four to share the
                  experience.  (Actually, Californians don't screw in
                  light bulbs, they screw in hot tubs.)
  
  Q:      How many Oregonians does it take to screw in a light bulb?
  A:      Three.  One to screw in the light bulb and two to fend off all
                  those Californians trying to share the experience.
  %
  Q:      How many mathematicians does it take to screw in a light bulb?
  A:      One.  He gives it to six Californians, thereby reducing the problem
          to the earlier joke.
  %
  (ethnic)
  %
  Hear about the Californian terrorist that tried to blow up a bus?
  Burned his lips on the exhaust pipe.
  %
  To a Californian, a person must prove himself criminally insane before he
  is allowed to drive a taxi in New York.  For New York cabbies, honesty and
  stopping at red lights are both optional.
                  -- From "East vs. West: The War Between the Coasts
  %
  To a Californian, all New Yorkers are cold; even in heat they rarely go
  above fifty-eight degrees.  If you collapse on a street in New York, plan
  to spend a few days there.
                  -- From "East vs. West: The War Between the Coasts
  %
  To a New Yorker, all Californians are blond, even the blacks.  There are,
  in fact, whole neighborhoods that are zoned only for blond people.  The
  only way to tell the difference between California and Sweden is that the
  Swedes speak better English."
                  -- From "East vs. West: The War Between the Coasts