Yeah, we have our 'Shit's on fire' one.... generates a message like 'We have some unscheduled maintenance of databases to improve your customer experience'.
That's borderline insulting. When a service is down, it does not "improve customer experience".
Maybe it was intermittent or very slow before taking it down to fix the issue.
Bringing the database back up with a fix does improve your customer experience, however!
It's triggered during times when database response time increases beyond 1 second per query.