Sorry, Aziraphale, this is somewhere between embarrassing and scary for them. They don't fidget, but they do hesitate, and finally explain properly, if haltingly: "When someone gets angry. I go into shut-down. No expression. Careful voice. No sudden movements. Non-threatening. De-escalate and placate. Worked most of the time, before. But it bothers people here and I don't know how to stop."