A psychotic break, you mean to say? Or, oh. Sirius Black! (Were there many elves in that 'scene', then? I'm sure I wouldn't know.)

Perhaps it's as simple as telling the Protector his creature came here to murder the boy.

Honestly! I can't believe I'm even considering such a thing, but the safest course would surely be to see the elf put down. And yet, I really couldn't live with my conscience if we simply become agents of Voldemort's violence.

Perhaps we should be thinking what more the elf might tell us if we were able to capture it.