<human>: I work as a DBA for a small company, and what we do is provide a website for companies that would allow them to look up any of their own information they'd need wherever and not through shitty PowerTerm. It also allows for interaction between branch managers and other employees in their company.

So yesterday, we ran into some issues with a feature where you can assign a task to another user, with a due date, if urgent, details, etc. It also emails that user, and texts them if we have that information. 

Well, I started playing around with it, marked tasks as complete or whatever, put a little lorem ipsum as the completion notes on it. All good, but the error we were having was upon completion, so I made a new task to try to recreate the error again. I assigned it to myself, and filled out every field without really paying attention just to recreate whatever issue it was having. Put the task as "die" because I'm hilarious. 

Once it was created, I noticed it also assigned it to 10 of our customers. Apparently one of the fields was "assign to everyone in (this group)." I immediately deleted all of the extra tasks, kind of freaking out once I realized I did this in production and not a local copy of our site. 

And right after I deleted the tasks, I realized that they would have just gotten an email, and possibly a text. 

Yep, sitting in 10 customers' inboxes was a message along the lines of "(my name) has assigned you a task, check the system. Task/Instructions: die" and out of thousands of users, I had no idea who. 

Thankfully, our DoNotReply email isn't set up to automatically delete replies. I got a bounce-back from one of the users emailed saying they were away for the holidays. After scouring around in the depths of our database, I found a group that that user was in with 10 people. Emailed all of them with an apology. Only one replied, and she forwarded me the generated email (which looked as bad as I'd thought) and said "Most interesting task." My brain read it in a Bill and Ted voice and I felt better.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Test your code locally or you might email customers and literally just instruct them to die. Also, don't leave front-end testing up to the DBA.