Even with fully flushing toilets, you can't always flush toilet paper.
In the U.S., it's normal in women's restrooms to see signs that say "Do not flush feminine products," so if you're traveling internationally and you see a sign that says not to flush paper down the toilet, you might assume it means the same thing.
It doesn't. If you're traveling abroad and you see a "no paper in the toilet" sign, it usually means all paper—including the toilet paper you use to wipe with.
My first time experiencing this reality was in Indonesia. The friend I was visiting lived in a large luxury home, modern in every way—except you had to toss your toilet paper into a bin instead of flushing it. Even rustic campsite pit toilets in the U.S. allow you to put toilet paper in them, so it went against every instinct I had not to toss the TP in the toilet after using it and put it in the little bin next to the toilet instead.
Then I encountered the same thing in Thailand, then in Greece, then in Patagonia in South America. These were all places with American-style flushing toilets, so it was unexpected that TP flushing was a no-no. If this is the norm in such vastly different regions, how common is "no TP flushing" around the world?
Surprisingly common for the 21st century, actually. As many advancements as we've made in engineering and technology, there are still lots of established plumbing systems underground that don't handle anything other than onesies and twosies very well.
For people from always-flush-the-TP countries, the inability to flush toilet paper can come as a shock, especially when the toilets seem no different than the ones at home. It's confusing that the toilet paper will physically flush down at the source, it just shouldn't be flushed because of what can happen on down the line.
In Greece, for example, the plumbing pipes are only two inches in diameter, compared to four inches in the U.S., which means paper clogs the pipes much more easily. Our Airbnb host in Athens told us if we smell a terrible sewage smell and hear a big motor running somewhere in the neighborhood, it's because people had flushed toilet paper and the sewage system had to be pumped. Brazil apparently has plumbing similar to Greece, and there are plenty of other countries in the same boat.
Where in the world can you flush your toilet paper?
So where are all of these countries? Well, hard to say exactly, as the most recent map I've seen (from mindofahitchiker.com above) is from 2017 based on information from 2012, and things may have changed in some of those countries by now. On this map, the green countries are safe to flush, the orange are "it depends" and the red are generally no-flushers.
Most places where you can't flush paper have signs saying so, but sometimes they're in another language and sometimes there just aren't signs because the assumption is that you know. Thankfully, mindofahitchhiker.com also offers a handy "Flush or not to flush?" flowchart to help you figure it out:
Find out more at mindofahitchhiker.com
Surprisingly, putting TP in a bin isn't as disgusting as I imagined it would be, nor is it stinky like I assumed it would be. In Indonesia and Thailand, nearly all toilets had a "bum gun"—a handheld water sprayer attached to a hose that hung on the side of the toilet—which helped everything feel a bit cleaner on that front. (I loved it so much I bought one to install at home after my trip.) But even without the hoses, the TP bins have plastic liners and usually fliptop lids you open with your foot, so it doesn't really feel as unsanitary as it sounds. And those bins appeared to be emptied frequently almost everywhere I was, so it wasn't any grosser of an experience than using a public restroom in the U.S. (There's also a generally expected level of courtesy, it seems, to make sure your used TP is folded or wadded in such a way as to not gross out other people.)
It may not be ideal and it may fly in the face of our normal habits, but I'm sure we'd all agree that plumbing working properly is important. So if you're traveling to country you've never been to before, do a little research, follow the toilet signs, and when in doubt, toss instead of flush. The locals will thank you.
A Generation Jones teenager poses in her room.Image via Wikmedia Commons
An office kitchen.via 
An angry man eating spaghetti.via 
An Irish woman went to the doctor for a routine eye exam. She left with bright neon green eyes.
It's not easy seeing green.
Did she get superpowers?
Going to the eye doctor can be a hassle and a pain. It's not just the routine issues and inconveniences that come along when making a doctor appointment, but sometimes the various devices being used to check your eyes' health feel invasive and uncomfortable. But at least at the end of the appointment, most of us don't look like we're turning into The Incredible Hulk. That wasn't the case for one Irish woman.
Photographer Margerita B. Wargola was just going in for a routine eye exam at the hospital but ended up leaving with her eyes a shocking, bright neon green.
At the doctor's office, the nurse practitioner was prepping Wargola for a test with a machine that Wargola had experienced before. Before the test started, Wargola presumed the nurse had dropped some saline into her eyes, as they were feeling dry. After she blinked, everything went yellow.
Wargola and the nurse initially panicked. Neither knew what was going on as Wargola suddenly had yellow vision and radioactive-looking green eyes. After the initial shock, both realized the issue: the nurse forgot to ask Wargola to remove her contact lenses before putting contrast drops in her eyes for the exam. Wargola and the nurse quickly removed the lenses from her eyes and washed them thoroughly with saline. Fortunately, Wargola's eyes were unharmed. Unfortunately, her contacts were permanently stained and she didn't bring a spare pair.
- YouTube youtube.com
Since she has poor vision, Wargola was forced to drive herself home after the eye exam wearing the neon-green contact lenses that make her look like a member of the Green Lantern Corps. She couldn't help but laugh at her predicament and recorded a video explaining it all on social media. Since then, her video has sparked a couple Reddit threads and collected a bunch of comments on Instagram:
“But the REAL question is: do you now have X-Ray vision?”
“You can just say you're a superhero.”
“I would make a few stops on the way home just to freak some people out!”
“I would have lived it up! Grab a coffee, do grocery shopping, walk around a shopping center.”
“This one would pair well with that girl who ate something with turmeric with her invisalign on and walked around Paris smiling at people with seemingly BRIGHT YELLOW TEETH.”
“I would save those for fancy special occasions! WOW!”
“Every time I'd stop I'd turn slowly and stare at the person in the car next to me.”
“Keep them. Tell people what to do. They’ll do your bidding.”
In a follow-up Instagram video, Wargola showed her followers that she was safe at home with normal eyes, showing that the damaged contact lenses were so stained that they turned the saline solution in her contacts case into a bright Gatorade yellow. She wasn't mad at the nurse and, in fact, plans on keeping the lenses to wear on St. Patrick's Day or some other special occasion.
While no harm was done and a good laugh was had, it's still best for doctors, nurses, and patients alike to double-check and ask or tell if contact lenses are being worn before each eye test. If not, there might be more than ultra-green eyes to worry about.