Two signs: one on a covered pole reads "Emergency Phone Not Installed. Please Do Not Have An Emergency At This Location." The second says Parmesan cheese isn't available due to extreme weather, for safety reasons.

Safety signs are meant to guide us and keep us safe, but time hasn’t always been kind to them. What once offered clear instructions or warnings has either faded or become nonsensical. Some signs caution us against dangers that no longer exist, while others are so worn out they’ve become puzzles you can barely read. In some cases, they’ve turned unintentionally funny, showing that even sagery can have a sense of humor.

These signs remind us that no matter how carefully something is designed, time has a way of changing everything, leaving behind relics that are more amusing than helpful. Step carefully, because these signs are past their prime and can’t be relied on as they once were. Let’s dive into 18 safety signs that aged like milk.

1. I’m not sure a single person in this world knows the correlation between weather and Parmesan cheese

A sign with a crossed-out image of parmesan cheese reads: "Due to the Extreme Weather Conditions We No Longer Carry Parmesan Cheese. Your Safety is Our Priority. Thank You.
userdeleted/via reddit.com

2. I’d like to know the story that inspired this safety warning

A sign shows a figure standing on a toilet with a red circle and line through it, next to a figure sitting on a toilet in a green circle. Text below reads "DO NOT STAND ON TOILET.
userdeleted/via reddit.com

3. The designer should have gotten this one peer-reviewed

The front of a ship displays the words "NO SAFETY SMOKING FIRST" in large letters, with an odd arrangement that mixes up the intended safety messages.
thechinyx/via reddit.com

4. I guess that didn’t apply to the bus driver

A light rail train with a large yellow sign reading "Safety begins with you" has collided with a blue car at a street crossing. The car is wedged between the train and a fence.
wild_milk_6167/via reddit.com

5. That’s a weird-looking dog

A sign with blue and white text reads, "For Safety and Enjoyment. Pets must be kept on a leash at all times. Thank You." It includes an illustration of a person walking a leashed animal that looks like a triceratops.
aiden_saxon/via reddit.com

6. I thought this was obvious, evidently not

A sign reads: "SAFETY NOTICE: PLEASE DO NOT BOARD THE BUS ONCE THE DRIVER HAS CLOSED THE BUS DOORS.
annabellee_2006/via reddit.com

7. “For your own safety, please don’t have an emergency here.”

A sign wrapped in plastic reads: "Emergency Phone Not Installed. Please Do Not Have An Emergency At This Location." Trees and greenery are visible in the background.
pumuckl4life/via reddit.com

8. Never come back, Joe

A sign on a chain-link fence reads, "THIS WORK CENTER HAS BEEN ACCIDENT-FREE SINCE JOE LEFT," with "JOE LEFT" replacing the usual date. The sign emphasizes safety, quality, and excellence.
hotpermisson-/via reddit.com

9. As if death wasn’t enough

A metal electrical box displays a warning sign: "Opening this box will result in death by electrocution & a €50 fine." There are also high voltage hazard symbols beneath the sign.
gueq100al/via reddit.com

10. This safety sign is harsh, but true

A roadside sign reads, "DRINK DRIVE DIE IN A DITCH." Below in smaller print: "Road Safety – It's Everyone's Responsibility." Trees and a guardrail are visible beside the road.
giraffeeg/via reddit.com

11. Tigers see us as a tasty steak?

A warning sign on a fence shows a cartoon steak with human legs and reads, "This is how our tigers see you. DANGER. DO NOT CROSS SAFETY BARRIERS." Grass and fencing are visible in the background.
thegirlnextdoor-_-/via reddit.com

12. This sign isn’t for our safety, it’s for the animals

A sign on a fence reads: "PLEASE BE SAFE. Do not stand, sit, climb or lean on fences. If you fall, animals could eat you and that might make them sick. Thank you.
kitties4life/via reddit.com

13. Safety first

A yellow triangular sign near a riverbank reads "小心坠河" and "Carefully fall to the river" in English, warning of a potential hazard despite the awkward translation.
userdeleted/via reddit.com

14. It’s a good rule to follow

A sign reads: "WARNING. DON'T BE A DUMB [expletive masked] HERE AT THE WORK PLACE! OSHA DOES NOT REQUIRE THIS SIGN BUT THEY DO REQUIRE MANY STUPID SIGNS THAT SAY CLOSE TO THE SAME THING.
lmanwell23/via reddit.com

15. “This sign at my work is to keep people out of our electrical equipment.”

A warning sign reads: "DANGER. DO NOT TOUCH. Not only will this kill you, it will hurt the whole time you're dying," above a triangle symbol with a person being shocked.
dumbshoujldhurt/via reddit.com

16. What are they warning us about here?

A yellow caution sign shows a giant mosquito carrying away a person. The words “DO NOT ENTER” appear below the image, posted on a grassy area with plants in the background.
awalak/via reddit.com

17. You’d better keep a close eye on your kids at this place

A wooden sign reads, "WARNING CHILDREN LEFT UNATTENDED WILL BE SOLD TO THE CIRCUS," with "WARNING" in black and the rest in red, leaning against a wall outside a building.
cheffooddrink/via reddit.com

18. This old electrical safety sign is oddly terrifying

A worn sticker shows a cartoon figure made of lightning warning a child with the text: "REMEMBER KIDS ELECTRICITY WILL KILL YOU" on a metallic surface.
cygnetsociety/via reddit.com

Want to see more funny signs?

Check out 20 Street Signs That Were Clearly Designed on Monday Morning, or take a look at 18 Passive-Aggressive Signs That Speak Louder Than Words. Finally, if you want to see signs that were written by someone having a bad day, take a look at 21 Signs That Were Clearly Written by Someone Having a Day.

Meet the Writer

Patrick is a writer based in upstate New York, where he grew up and still calls home. Over the past year, he’s been diving deep into storytelling, especially tales rooted in history, the Wild West, lost treasures, and ancient artifacts. He’s also drawn to unsolved mysteries and whatever the internet can’t stop talking about.

Whether it’s a centuries-old legend or a bizarre internet rabbit hole, Patrick is always chasing the threads of a compelling story. When he’s not chasing stories, Pat’s probably hiking mountain trails with his dog, exploring new corners of the U.S., or doom-scrolling between hangouts with friends and family. He finds inspiration in nature, forgotten places, and random conversations—anything that sparks curiosity. Whether it’s city streets or backcountry paths, Patrick’s always on the lookout for the next great story.