Every time I go, it feels like the normal rules of human behavior are suspended. People cut in line, block entire aisles with their oversized carts, swarm the free sample tables like it’s their last meal, and somehow forget how to use basic turn-taking skills. I’ve had strangers reach over me to grab things off the shelf, families park their carts sideways to chat in the busiest spot of the store, and one time a guy nearly rammed me because he was racing toward a pallet of discounted toilet paper.
What is it about Costco that turns otherwise normal adults into reckless, rude, every-person-for-themselves shoppers? Is it the bulk quantities? The “limited-time-only” vibe? Or do people just abandon manners when they think they’re saving a buck?
You’re not imagining it—Costco really is its own little social experiment in human behavior. Put hundreds of people in a giant warehouse with oversized carts, free food, and the illusion of “limited time savings,” and suddenly you’ve got a petri dish of scarcity mindset and sensory overload.
Here’s what’s happening: when people see pallets stacked high with 48-packs of toilet paper or a crowd forming around a tray of mini-quiches, something in the brain flips into survival mode. If I don’t grab this now, it’ll be gone. Add in the chaos of navigating a store that feels like an airport hangar, and manners go out the window. It’s less about Costco specifically and more about what the environment triggers—urgency, competition, and the weird thrill of a bargain.
That said, you’re not powerless. Go during off-hours if you can (weekday mornings are golden). Keep headphones in if the noise ramps you up. And remind yourself that you’re not in a Thunderdome battle—you’re just buying groceries. If it gets to be too much, park the cart, take a breath, and laugh at the absurdity of grown adults fighting over frozen potstickers.
The truth is, Costco doesn’t turn people into monsters—it just strips away the thin layer of civility we normally wear in public. What you’re seeing is the unfiltered version of how scarcity and crowds mess with us. Your best defense? Don’t take it personally. Grab your rotisserie chicken, your 5-gallon bucket of pretzels, and get out.