My thoughts on Steven Universe:

If you guys haven't watched Steven Universe's episode of "Warp Tour", then it's spoilers for you!:

Peridot mercilessly slaughtered of one of her own warp-repair drones? So who's that girl? An ally or enemy? Or a cute girl that abuses drones?

Perhaps those gem warriors' uneasiness behavior over the appearance of Peridot in the episode of Warp Tour wasn't unfounded. If you ask me: Why must Garnet had to destroy Galaxy warp with her own weighted gauntlets? Hence, my guess is that Peridot is a possibly member of oldest enemy that gem warriors had fought in millennium years ago. A gem interstellar war that gem warriors barely survived.

After the disappearance of Peridot on warp pad, Amethyst and Pearl's exclaims somewhat confirmed my suspicion:

“I can’t do this again!" - Pearl
“We’re so dead!” - Amethyst

Gem warrior's uneasiness toward to the Peridot raises some of the questions, don't you agree? Gem warriors of Earth is probably one of rebel survivors against gem interstellar war of "gem perfection".

chaoticlaw and zaggystirdust, I summon thine: you guys are welcome to discuss with this subject!