The worst coding/programming mistake you've ever made?

[Avantar]

well, I don't know if it really counts as a coding mistake...

But at my old old company I was in charge of creating everybody's HTML Outlook signatures. Basic stuff. Some embeded images and the standard "Kind Regards John Doe" with contact details. Now I of course use one master template that I just change name and info on per individual.

Now, the "t" and the "g" keys are very close together. And I, nor anybody else, didn't notice my little typo in "Kind Regards" for a week and a bit...

Ha ha ha...'Kind Retards'

[rugrash]

Accidentally sent out 9500 emails with the text string: "<h1>I hope this flipping thing works now</h1>". Not my finest moment.

[DieGrootHammer]

This is not the worst coding mistake, nor is it a story about me, but more en employee of mine. As part of her development, I've started giving her more responsibility when it comes to the management and development of our Qlikview Dashboards. That way, it free's up my time to spend on the myriad of other projects I have to deal with.

Well, not even 30 minutes ago, she sent me an email. The dashboard she created wasn't working properly, and I gave her extension on deadline to this morning to finish it. She worked until late hours yesterday, and even through the weekend to find the issue, but she was struggling. Now, 30 minutes ago, her email stated that the issue was an "S" incorrectly added to one line of code. Hahahahaha. I believe anyone that's ever done any coding of some sort would know this type of errors. Like I said, it's not business braking, but thought was share-worthy.

[murfle]

I remember I did a map on an old client's website. I named it map.php, since the live version was map.php3. I didn't put any text on the button, so to make it a little bigger to click on, I put "Small buttons suck".

The main dev decided one day to drop .php3 file extensions in favour of .php, so the map didn't get ported, and the test file went live along with 'small buttons suck'.

I'm sure if I think hard enough, I'll have something much worse than that...