"All right. Because you asked," Natasha says, stepping in smoothly, her movements confident and practiced. She takes Alex's arm and twists it just to the point where it seems like Alex can't move without hurting herself more—and she explains as she does it why it works, how it works, while twisting her arm.

It's very educational.

And more than a little uncomfortable, though Natasha is confident she won't have a problem with the discomfort.