World's Most Aggravating Edge Cases
@badedgecases.bsky.social
THIS WEEK ON "WORLD'S MOST AGGRAVATING EDGE CASES" by @qntm.org
Pinned
YOU PAID FOR ALL THE TEST CASES BUT YOU'LL ONLY NEED THE EDGE
Discontinuities in civil time
October 26, 2025 at 7:17 PM
Discontinuities in civil time
Reposted by World's Most Aggravating Edge Cases
The way to discover which version of the Gnome desktop I'm running … depends on which version of the Gnome desktop I'm running.
I've so far found 4 different ways suggested in various online guides that don't work in this version, and 2 that give the wrong answer! @badedgecases.bsky.social
I've so far found 4 different ways suggested in various online guides that don't work in this version, and 2 that give the wrong answer! @badedgecases.bsky.social
September 4, 2025 at 7:37 AM
The way to discover which version of the Gnome desktop I'm running … depends on which version of the Gnome desktop I'm running.
I've so far found 4 different ways suggested in various online guides that don't work in this version, and 2 that give the wrong answer! @badedgecases.bsky.social
I've so far found 4 different ways suggested in various online guides that don't work in this version, and 2 that give the wrong answer! @badedgecases.bsky.social
You and your friends try to visit All Bar One but it turns out that you are the one
August 5, 2025 at 10:18 PM
You and your friends try to visit All Bar One but it turns out that you are the one
Reposted by World's Most Aggravating Edge Cases
Norman Reedus needing an adult to get him access to Discord because his face, and his face only, is blocked from verification
July 25, 2025 at 6:26 PM
Norman Reedus needing an adult to get him access to Discord because his face, and his face only, is blocked from verification
Reposted by World's Most Aggravating Edge Cases
@badedgecases.bsky.social
Real office fire at the same time as weekly alarm test.
(This actually happened to me)
Real office fire at the same time as weekly alarm test.
(This actually happened to me)
July 14, 2025 at 8:36 PM
@badedgecases.bsky.social
Real office fire at the same time as weekly alarm test.
(This actually happened to me)
Real office fire at the same time as weekly alarm test.
(This actually happened to me)
Reposted by World's Most Aggravating Edge Cases
You might be delighted/horrified to learn that the machine-readable zone of ICAO passports encodes all dates as YYMMDD – including the date of birth.
July 14, 2025 at 7:44 PM
You might be delighted/horrified to learn that the machine-readable zone of ICAO passports encodes all dates as YYMMDD – including the date of birth.
Reposted by World's Most Aggravating Edge Cases
Everything on Steam today is $2.99 buff.ly/2wGgxQo
December 25, 2024 at 4:41 PM
Everything on Steam today is $2.99 buff.ly/2wGgxQo
Darts player with 20ft arms
July 14, 2025 at 7:39 PM
Darts player with 20ft arms
Godot shows up
July 14, 2025 at 7:39 PM
Godot shows up
"My wife had to replace her phone because the old one's camera was broken. Almost all of the banking and government apps and WhatsApp required her to restore her account by scanning a QR code with... the broken camera on her old phone. Often with no alternatives."
Joost Maglev on X: ". @badedgecases My wife had to replace her phone because the old one's camera was broken. Almost all of the banking and government apps and WhatsApp required her to restore her account by scanning a QR code with... the broken camera on her old phone. Often with no alternatives." / X
. @badedgecases My wife had to replace her phone because the old one's camera was broken. Almost all of the banking and government apps and WhatsApp required her to restore her account by scanning a QR code with... the broken camera on her old phone. Often with no alternatives.
x.com
July 14, 2025 at 7:39 PM
"My wife had to replace her phone because the old one's camera was broken. Almost all of the banking and government apps and WhatsApp required her to restore her account by scanning a QR code with... the broken camera on her old phone. Often with no alternatives."
Significant trailing whitespace
July 14, 2025 at 7:38 PM
Significant trailing whitespace
An employee's surname is "Null" stackoverflow.com/questions/44...
How to pass "Null" (a real surname!) to a SOAP web service in ActionScript 3
We have an employee whose surname is Null. Our employee lookup application is killed when that last name is used as the search term (which happens to be quite often now). The error received is:
<
stackoverflow.com
July 14, 2025 at 7:38 PM
An employee's surname is "Null" stackoverflow.com/questions/44...
"Apparently if your child turns two while on an American Airlines flight and they’re still sitting on your lap, a US Air Marshall will perform a dragon suplex on them at exactly 12:00am midnight"
Sam Winkler on X: "Apparently if your child turns two while on an American Airlines flight and they’re still sitting on your lap, a US Air Marshall will perform a dragon suplex on them at exactly 12:00am midnight https://t.co/s4W13BMtH2" / X
Apparently if your child turns two while on an American Airlines flight and they’re still sitting on your lap, a US Air Marshall will perform a dragon suplex on them at exactly 12:00am midnight https://t.co/s4W13BMtH2
x.com
July 14, 2025 at 7:34 PM
"Apparently if your child turns two while on an American Airlines flight and they’re still sitting on your lap, a US Air Marshall will perform a dragon suplex on them at exactly 12:00am midnight"
A guided tour of every conceivable edge case you might encounter while attempting to define the term "mainline Super Mario Game"
www.youtube.com/watch?v=-Ddm...
www.youtube.com/watch?v=-Ddm...
how many Super Mario games are there NOW?
YouTube video by jan Misali
www.youtube.com
July 14, 2025 at 7:32 PM
A guided tour of every conceivable edge case you might encounter while attempting to define the term "mainline Super Mario Game"
www.youtube.com/watch?v=-Ddm...
www.youtube.com/watch?v=-Ddm...
"Biannual" event which occurs twice in every second year
July 14, 2025 at 7:28 PM
"Biannual" event which occurs twice in every second year
I dislike declaring a real human being to be a "bad edge case" but this is a great story
And a cautionary tale to everybody who creates user interfaces where people have to enter an age or date of birth
x.com/joetidy/stat...
And a cautionary tale to everybody who creates user interfaces where people have to enter an age or date of birth
x.com/joetidy/stat...
Joe Tidy BBC News on X: "I’m on a flight in US and an old lady has caused confusion, hilarity and then amazement as the crew expected her to be an infant. She is actually 101 and the computer can’t handle an age that high so just put her down as a 1 year old on the manifest. She laughed it off. Legend." / X
I’m on a flight in US and an old lady has caused confusion, hilarity and then amazement as the crew expected her to be an infant. She is actually 101 and the computer can’t handle an age that high so just put her down as a 1 year old on the manifest. She laughed it off. Legend.
x.com
July 14, 2025 at 7:27 PM
I dislike declaring a real human being to be a "bad edge case" but this is a great story
And a cautionary tale to everybody who creates user interfaces where people have to enter an age or date of birth
x.com/joetidy/stat...
And a cautionary tale to everybody who creates user interfaces where people have to enter an age or date of birth
x.com/joetidy/stat...
During a soccer match, the referee, who has sole authority to cause the match to be stopped, suspended or abandoned, dies
July 14, 2025 at 7:25 PM
During a soccer match, the referee, who has sole authority to cause the match to be stopped, suspended or abandoned, dies
Imagine how difficult it would be if you had two colleagues, one called Ian and one called Iain, but Iain only had one eye.
x.com/MooseAllain/...
x.com/MooseAllain/...
Moose Allain Ꙭ on X: "Imagine how difficult it would be if you had two colleagues, one called Ian and one called Iain, but Iain only had one eye." / X
Imagine how difficult it would be if you had two colleagues, one called Ian and one called Iain, but Iain only had one eye.
x.com
July 14, 2025 at 7:25 PM
Imagine how difficult it would be if you had two colleagues, one called Ian and one called Iain, but Iain only had one eye.
x.com/MooseAllain/...
x.com/MooseAllain/...
"the green squares are tests that are passing. it just so happens that one of the test suites is called 'compiler-errors'"
July 14, 2025 at 7:24 PM
"the green squares are tests that are passing. it just so happens that one of the test suites is called 'compiler-errors'"
You have to pay the Dartford Crossing toll online within 24 hours... however, due to unbelievable traffic, it takes you longer than that to cross the bridge
July 14, 2025 at 7:22 PM
You have to pay the Dartford Crossing toll online within 24 hours... however, due to unbelievable traffic, it takes you longer than that to cross the bridge