Still technically in the middle of cleanup, fucked this one up less than an hour ago.

At work we use SCCM for package deployments to various labs and organizational clusters, makes our lives a tiny bit easier. I'd been actively working on a new deployment with CAD-softs and other design programs, reasonably technical stuff. My boss put out a new notice "All computers need to have [package] to be compliant." Okay, no problem, link [package] to my deployment rather than manually link each program in [package]. I forgot to click the filter that would have made my link one-way, and instead of just receiving the [package] in my deployment, I pushed my deployment to over half the damned company. (Over 5000 machines received my deployment)

And then went to lunch.

I get back to my desk, open up TEAMS to check on flow, and am immediately assaulted by DOZENS of messages from our Service Desk going "WTF? Did someone issue a rebuild order to all the machines everywhere?" I immediately knew what had happened from the list of new applications, and went into damage control, delinking my deployment from [package], purging the computers (and frankly the entire deployment itself), and alerting the heads of the Service Desk and my own boss about who and what fucked up.

Tl;DR:Hit a button in SCCM thinking I was saving myself some significant time, instead created several hours worth of cleanup to come.

Update: Boss just sent me a text saying "Learn from it, and see you tomorrow." Looks like I still have a job!