What would you even have done in the middle of a fight if someone had told you that they were, I don't know, a time travelling Cetagandan Empress? Probably ignore the insanity and focus on the objective, maybe report it to a superior later, at most? [ 'Cause that's what Wash would've done. ] A lie would've been safer. And probably more effective at getting their attention.

[ He shakes his head, it's fine, it was in a battle, a spur of the moment decision . . . And Miles had wanted to protect Sonia. He still should've been there. ]

Not anyone I know. Ratchet or York might.