Castelocked/YMMV

Moral Event Horizon: Eridan has two In-Universe:
- For Kanaya and Nepeta, he crossed the line when he attempted to Murder the Hypotenuse and left Nepeta for dead.
- For just about everyone else in their social circle, his crossing came when he tried to take revenge on Kanaya for damaging his relationship with his moirail by mind-controlling Equius. Kanaya called Aurthor for help; Equius then unknowingly killed his own lusus.