I'm quite proud to have written software to automate locking out striking union members from various systems at the push of a button over a decade ago for a certain checkmarked telecom.
Granted, the code was a spaghetti mess based on bad design requirements that took limited advantage of technology available at the time. And the tech at the time also sucked. I'd totally re-write it completely different now-a-days, and it would be BEAUTIFUL! Even despite the stupid design requirements.