[Nico has the urge to roll his eyes, but he doesn't. Privacy is serious.]

I would knock first, [he confirms.] The only reason I'd ever use it is if you couldn't get to the door. I'd try calling and knocking and just plain forcing the door first.

Also, if you were dead, but I'd know that already and could ask the Admiral to bring you back.

[Which chafes, just a little, for several reasons, but that's neither here nor there.]