Our OCs get into an argument. One thing leads to another and one of them hurts the other. Before they know it the other is on the floor out cold. What do they do? Especially when they hear two particular voices just around the corner?

That's right, both our OC's crushes round the corner just in time to see one standing over the other's unconscious body...

We can decide whether the one that got hurt is dead or only injured, that's up to you