Use the Split-Up Pad near the main entrance and go the workers corridors. Destroy the camera to remain safe, and walk up to the female bathroom. A worker rabbit will ask you to get her out because the door is jammed. However, there is no way to help the poor rabbit, because the door cannot be opened. Note: The comments made by the female rabbit get slightly crude if you continue to listen to her constantly. Also, you can only talk to the female worker rabbit if you go there as Kazooie (not Banjo alone, or Banjo-Kazooie together).