"It isn't one that it is a good idea to get into." She tried only once, and it turned out terribly for her. She didn't get physically hurt, but being trapped in dark spaces still is likely to make her panic. On the other hand, it made her meet her team and become what she is now, so it maybe was good that she got trapped in that place.

She will move quickly once he has turned around, but not to attack him; no, she just will take off her trousers and shoes and coat to get dressed properly this time, with shirt and undies underneath, and once that is done she'll zip around the room to pick up little boxes and bundles from various places where they were hidden. Most of them, including the gun, end up in hidden places under or inside her coat. Only a necklace made of pretty pebbles around her neck remains visible.