Still no logical reason for the most WTF aspect of the new series? Which is WHY IN THE WORLD would someone who went through 'The Killing Joke' move in with a roommate she didn't know previously? I would think it would be nerve-wracking enough for Babs to ever answer the door casually again, much less have someone she just met with the ability to let any Tom, Dick, or Joker into the apartment. There are ways to build a supporting cast without making the heroine seem dangerously unstable.