Serial Experiments: Lain Another stream of notes. I will say that I didn't fully understand what happened to the sister until I looked it up. Or that the MIB were hired by the "dad"? Something like that, anyway. It's fun looking back and seeing what I missed. Ep 3: Sister: Mentions an imaginary friend First(?) ep: Lain is telling someone on the train to shut up Third ep Lain: Reacting to what I…