I once configured a Jenkins instance to play different sound effects when certain builds would fail. Originally these were played out of our big office TV, but its speakers broke at some point. A few years later, a couple of new hires came up to me to tell me they thought their laptops were infected with malware, because it would sometimes make weird noises. Turns out they had Jenkins open in a browser tab, and it would play the sounds when builds broke.
Lots of generational differences here: A opened the build while I’d just wait for the email in case of failure. Second, they kept it open, which in my time I wouldn’t have (Perhaps you neither, which would explain why you never noticed).
