Psychology says people who duck down an aisle to avoid someone they know at the grocery store aren’t antisocial — an unplanned conversation is an unbudgeted withdrawal, and dodging it is energy management, not dislike

You see them before they see you. A coworker, a neighbor, someone from your kid’s school, standing in front of the pasta sauce with a cart half full.

And without deciding anything, you’re suddenly very interested in aisle five.

It’s a small, slightly absurd maneuver, and almost everyone has done it. What’s strange is how bad we feel about it afterward. The guilt assumes the dodge was a judgment: that we don’t like this person, that we’re antisocial, that something is wrong with us.

The headline makes a friendlier claim, so a boundary is worth drawing first.

Psychology has not run a study on grocery store aisle-ducking specifically, and no research can tell you why you, personally, hid behind the cereal. Some people avoid a specific person for specific reasons. Some are having a bad day. The “unbudgeted withdrawal” framing is an interpretation, not a finding.

What research does offer is a set of findings that make the interpretation more plausible than the guilt.

Social interaction has a measurable cost that arrives on a delay.

Whether alone time restores you depends heavily on whether you chose it. And there’s a documented gap between how much people expect to enjoy an unplanned conversation and how much they actually do, which turns out to be the most interesting part of the story.

Being sociable feels good in the moment and sends the bill two to three hours later

The most direct evidence that socializing draws on a finite account comes from experience-sampling research, where people report on their behavior and energy several times a day as they live their normal lives.

In a 12-day study by psychologists Sointu Leikas and Ville-Juhani Ilmarinen, being talkative and sociable was linked to better mood and less tiredness in the moment. The same behavior predicted higher fatigue about three hours later.

The sample was small, 48 people, which is a real limitation. But Leikas ran a second study to check the result, this time with 74 people and over a thousand observations, and the pattern held: sociable behavior predicted feeling tired two to three hours on.

Two details matter for the person hiding in aisle five. The fatigue showed up regardless of trait extraversion.

The researchers found no evidence that introverts paid a higher price than extroverts, which means the account exists for everyone, not just the people who claim it does. And the delay explains why the cost is so easy to deny: the conversation itself feels fine, even pleasant. The withdrawal doesn’t clear until you’re home, inexplicably flattened, wondering why a 40-minute errand took something a 40-minute errand shouldn’t take.

The person who ducks the aisle isn’t necessarily avoiding an unpleasant experience. They may be declining a pleasant one they know they’ll pay for later.

The dodge converts an imposed interaction into a chosen solitude, and choice is most of the price

There’s a second finding that gives the word “unbudgeted” its force, and it comes from research on the other side of the ledger: what being alone actually does to you.

In a series of studies, psychologist Thuy-vy Nguyen and her colleagues found that time alone reliably dials down high-arousal emotional states. They called it the deactivation effect. But the most relevant result came when they looked at how people entered the solitude. When individuals actively chose to be alone, time by themselves produced relaxation and reduced stress. The same condition, imposed rather than chosen, didn’t carry the same benefit.

That distinction maps onto the grocery store almost perfectly.

An errand is a strange category of time. You’re in public, but you’re functionally alone: list in hand, half-thinking, running the one mental mode that gets the milk bought. The surprise encounter doesn’t just cost conversational energy. It revokes the “chosen” status of that solitude mid-use, and choice, per Nguyen’s work, is a large part of what made the solitude restorative in the first place.

Seen that way, the duck down aisle five isn’t a rejection of the person. It’s a defense of the ledger. You’re not refusing to spend. You’re refusing to be spent without having signed anything.

Psychology has a word for not getting enough time to yourself, and it predicts exactly this move

In 2019, psychologist Robert Coplan and his colleagues at Carleton University named a construct they’d been circling for years: aloneliness, the mirror image of loneliness. Loneliness is the distress of wanting more connection than you’re getting. Aloneliness is the distress of wanting more solitude than you’re getting, and their research linked it to higher stress, more depressive symptoms, and more anger.

Their measure includes items like “It would be nice if I could spend more time alone each day.” If reading that sentence produced a small pang of recognition, the aisle-duck probably needs no further explanation.

Because for a lot of people, the grocery run is one of the only unscheduled solitudes left in the week. The job takes the day. The family takes the evening. The phone takes the gaps. What remains is 40 minutes with a cart, and someone standing between you and the pasta sauce, warmly, innocently, about to take that too.

A person running low on money notices every unplanned expense. A person running low on solitude notices every unplanned conversation. Neither reaction says much about the merchant.

Here’s the twist: the conversation you dodged would probably have gone fine

An honest version of this argument has to include the research that cuts against it.

In a well-known series of experiments, behavioral scientists Nicholas Epley and Juliana Schroeder asked commuters on trains and buses to either talk to a stranger, keep to themselves, or commute as normal.

People predicted solitude would be more pleasant. The opposite happened: those who connected reported a more positive experience than those who kept to themselves. Follow-up work with London commuters found the same thing.

So the dodge is not a good prediction of how the conversation would have gone. Once a conversation starts, it tends to run better than we forecast.

But notice what this research is actually measuring: the experience during the interaction. Leikas’s fatigue findings are about what happens hours after. Both can be true at once, and for the aisle-ducker, both usually are. The chat would have been pleasant, and it would have cost something anyway.

Which is exactly why the headline says energy management rather than dislike. Dislike predicts the conversation will be bad. The dodger usually knows it won’t be. They’re not avoiding a bad experience. They’re declining a good one they can’t currently fund, the way you can walk past a restaurant you love because it’s the 28th of the month.

Ducking the aisle can be a form of consideration, not a withdrawal of it

Here’s my reading of what actually happens in that split second by the pasta sauce, and it’s kinder than the guilt suggests.

The dodger runs a fast, mostly unconscious calculation: what version of me is available right now? And the answer comes back: the errand version. Distracted, budgeted to the minute, capable of producing pleasantries but not presence.

Offering that version to someone you genuinely like can feel worse than offering nothing. The conversation happens, but you’re performing attention rather than paying it, glancing at your list, giving answers a half-beat late. Most people can feel the difference between being talked to and being processed.

There’s no study to cite here, and I won’t pretend there is. But it squares with everything above. If interaction draws on a finite account, then rationing it isn’t hostility. It’s an attempt to make sure the people who get your attention get the funded version of it.

The aisle-duck and the long, unhurried phone call to the same person that weekend are not contradictions. They’re the same budget, managed.

When every aisle becomes a hiding place, energy stops being the explanation

The reassurance has a boundary, and it’s worth stating plainly.

Dodging a coworker on a tired Tuesday is energy management. Dodging everyone, everywhere, for months is a different pattern, and clinical psychology is fairly blunt about how it works: avoidance tends to feed the discomfort it protects against.

Every dodge delivers a small hit of relief, the relief reinforces the dodge, and the pool of people who feel manageable to encounter quietly shrinks. That loop is a core feature of social anxiety, and it doesn’t respond to more avoidance. It responds to the opposite, ideally with support.

The test isn’t whether you duck. Nearly everyone ducks. The test is whether the ducking is a choice you make sometimes or a rule you can’t break. Whether you also, on funded days, stop and have the conversation. Whether the person in aisle five is someone you’ll happily see at dinner next month, or someone you’ve been avoiding across every context for a year.

If it’s the first, the guilt is misspent. You saw someone you like, checked the account, and made a decision a budget-keeper makes.

The pasta sauce aisle will host the reunion some other week, when the funds are in.