User blog comment:IamJakuhoRaikoben/Chapter 393: Silver Memories, Review./@comment-1359322-20140717104322/@comment-7418318-20140717110911

@B214: I couldn't agree more.

@Anon:I'm pretty sure that Keith took precaution against his "experiments" killing themselves or attacking members of Tartaros.

That would explain why Silver was hunting Demons outside the guild, instead of attacking the Demon Gates, Mard Geer, destroying Hell's Core or sabotaging some other important piece of equipment in Cube.

@nobody in particular:

I know it's probably not going to happen, but if Juvia feels responsible for "killing" Gray's father, it might be enough for her to distance herself from Gray due to feeling guilty. This has the potential to turn her obsession into something less annoying.