We love Costco, but there’s something about that store that seems to make people unhinged. We’ve witnessed some seriously bad behavior before from other shoppers, leaving everyone around them scratching their heads.
Recently, one Costco member took to Reddit to ask “What’s the most bizarre/annoying behavior you have witnessed at your Costco?” and the stories range from horrifying to hilarious. Here are some of our favorite examples of bizarre behavior in Costco.

Moms Behaving Badly
“Two kids shrieking and ripping apart multiple packs of bananas and throwing them at people, including me.
And then their mother, instead of disciplining them, chose to berate me for swearing (to myself, unintentionally, after having just dodged a banana while suffering from a migraine).
That confrontation did not go the way she expected it to.”
Soup’s On
“Back in the day when they had the diced onions outside in the crank dispensers, I once saw an old lady cranking it into a ziplock bag to take home and she smiled at me and happily said she was going to make soup.”
Loud K9 Companions
“I’ve seen this woman who brought her three small non-service dogs and they were all barking throughout the Costco. I just don’t understand people sometimes.”
Not Technically Costco Members, But…
“Our resident ravens sit on top of the parking lot lights scrutinizing each cart full of merchandise as it’s wheeled out of the store. If you turn your back on your package of fish, ribs, chops, steaks, etc., e.g. to put your kids in the car, they will swoop down and fly off with the whole tray of meat, or as much as they can lift after breaking the plastic wrap, before you can stop them. They work in pairs (they mate for life).”

You Feta Keep On Moving
“I saw a giant man stop his cart and take a phone call in front of the cheese! In front of the cheese!! I was like excuse me sir, all of us are here for cheese! Move! One does not stop and camp in front of the cheese.”

Trending on Cheapism
She Didn’t Even Get the Gas!
“A lady trying to go through the gas station the wrong direction. Then arguing with the attendant for ten minutes and insisting she always goes the wrong direction. Then not knowing how to use the card reader and driving off without gas.”
Food Wasters
“Leaving perishable food (especially when it’s spendy) in some distant aisle rather than putting it back where it came from or giving it to a store worker to handle. Unbelievably selfish and lazy.”

Lazy Shoppers
“This past weekend saw two guys roll up with a full cart and give it to the cashier without unloading. Cashier was not pleased and made them unload it.”
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Kind of Genius, Actually…
“People using the furniture inside that’s on display for sale to eat stuff from the food court lol”
Must Be Good Detergent
“This past crowded Saturday in upstate NY an old woman parked herself and her cart in front of the OJ fridge, blissfully indifferent that a few of us were waiting for said OJ, opened the giant thing of detergent in her cart that she had yet to purchase, bent down, and took a big ol whiff of it.”
Taking Advantage of the Return Policy
“Guy returning half a pack of muffins because they were ‘too dry.’ He ate one while waiting in the return line.”

Adorable Service Animal
“Emotional support pony. Littleton, Colorado.”
Multitasking at Its Finest
“I saw a lady sit on a pallet of black beans and take a work call with her laptop propped on her cart, wired headphones and all. She essentially turned the aisle into her office. It was the Monday before Thanksgiving, it was likely the busiest day of the year.”

Hogging the Air
“Someone parked in the tire pressure station recently for over an hour to shop while a line of us waited to use the one available station. Auto guy wasn’t pleased as well and confronted the jerk when he finally came out. People are so rude.”
Entitled Members Get What They Deserve
“Got to Costco for the 9:00 Executive card opening time. Hopped in line with about 40 or so other shoppers. Right before I am entering the door an older lady and her husband who were just walking up try to push past me. I turned and asked her in my most polite church voice. ‘You are cutting in line and do you see all of the other people who are still waiting?’
She replied ‘We are in a hurry and don’t have time to wait.’ My gentle reminder that all of us here are also in a hurry, but we wait in line like responsible adults. She then started to scream at me that she DIDN’T HAVE TIME…
Luckily a store manager happened to be at the gate and saw the whole thing. He asked her if she didn’t have time because of some emergency? She mumbled No, but that they were in a rush. He then asked for her Costco card and he gleefully pointed out that the 9:00 opening was only for Executive card members and she will need to return back at 10:00.”

Absolutely Shameless
“I saw a woman rush to get in front of a man in a wheelchair to take the last rotisserie chicken before he could get there.”
Perennial Problem
“Let me STAND IN THE WAY AND BE OBLIVIOUS”
Four Score and Seven Samples Ago…
“We have a dead ringer look alike of Abraham Lincoln! He dresses up in the top hat and everything. He just walks around and never bothers anyone.”