The Speed of Dark by Elizabeth Moon

Pickup”
    section, where a conveyor belt delivers a box to the pickup lane. I do that sometimes, but not often. It costs 10 percent more, and it is important for me to have the experience of shopping. That’s what my mother said. Mrs. Taylor said maybe I was getting enough stress without that, but my mother said Mrs.
    Taylor was too sensitive. Sometimes I wished that Mrs. Taylor was my mother instead of my mother, but then I felt bad about that, too.
    When people in the grocery store are shopping alone, they often look worried and intent and they ignore others. Mother taught me about the social etiquette of grocery stores, and a lot of it came easily to me, despite the noise and confusion. Because no one expects to stop and chat with strangers, they avoid eye contact, making it easy to watch them covertly without annoying them. They don’t mind that I don’t make eye contact, though it is polite to look directly at the person who takes your card or money, just for a moment. It is polite to say something about the weather, even if the person in front of you in line said almost the same thing, but you don’t have to.
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    Sometimes I wonder how normal normal people are, and I wonder that most in the grocery store. In our Daily Life Skills classes, we were taught to make a list and go directly from one aisle to another, checking off items on the list. Our teacher advised us to research prices ahead of time, in the newspaper, rather than compare prices while standing in the aisle. I thought—he told us—that he was teaching us how normal people shop.
    But the man who is blocking the aisle in front of me has not had that lecture. He seems normal, but he is looking at every single jar of spaghetti sauce, comparing prices, reading labels. Beyond him, a short gray-haired woman with thick glasses is trying to peer past him at the same shelves; I think she wants one of the sauces on my side, but he is in the way and she is not willing to bother him. Neither am I. The muscles of his face are tight, making little bulges on his brow and cheeks and chin. His skin is a little shiny. He is angry. The gray-haired woman and I both know that a well-dressed man who looks angry can explode if he is bothered.
    Suddenly he looks up and catches my eye. His face flushes and looks redder and shinier. “You could have said something!” he says, yanking his basket to one side, blocking the gray-haired woman even more. I smile at her and nod; she pushes her basket out around him, and then I go through.
    “It’s so stupid,” I hear him mutter. “Why can’t they all be the same size?”
    I know better than to answer him, though it is tempting. If people talk, they expect someone to listen. I am supposed to pay attention and listen when people talk, and I have trained myself to do that most of the time. In a grocery store sometimes people do not expect an answer and they get angry if you answer them. This man is already angry. I can feel my heart beating.
    Ahead of me now are two giggling children, very young, pulling packets of seasoning mix out ofracks. A young woman in jeans looks around the end of row and snarls, “Jackson! Misty! Put those back!” I jump. I know she wasn’t talking to me, but the tone sets my teeth on edge. One child squeals, right beside me now, and the othersays , “Won’t!” The woman, her face squeezed into a strange shape by her anger, rushes past me. I hear a child yelp and do not turn around. I want to say, “Quiet, quiet, quiet,” but it is not my business; it is not all right to tell other people to be quiet if you are not the parent or the boss.
    I hear other voices now, women’s voices, someone scolding the woman with the children, and turn quickly into the cross-aisle. My heart is running in my chest, faster and stronger than usual.
    People choose to come to stores like this, to hear this noise and see other people being rushed and angry and upset. Remote ordering and delivery failed because they