SCP Foundation

My first thoughts on this would be to start with simple, non-anomalous difficulties that could happen in a regular home or business. You could probably think of some real-life examples from your own experience - things like pipes freezing, drains getting clogged, electrical wiring shorting out, bugs or pests infesting a particular area. Yes, the Foundation is very well organized and tries to make sure even regular maintenance workers are very sharp and on top of their game. But even the best organization has a few slackers. Given how dangerous the rest of their work is, a slacker in the routine site maintenance department is more likely than average to last awhile before screwing something up badly enough to get fired.

Where things would get weird would depend a lot on the purpose of the SCP facility. What sort of anomalies are they charged with containing? What other kinds of work do they do? A bathroom flooding from a backed-up toilet might not be that big of a deal in a facility dedicated to, say, electronic anomalies and antimemetics. But if they're a place that houses reality benders, they would probably have draconian safety precautions because any unexpected change in conditions could be a sign that someone has breached containment. Once it was determined to have been just someone carelessly flushing, say, a non-anomalous sock, everyone would stand down, but the incident would still waste the better part of a day's work for the whole staff.

Another possible source of difficulty is logistics. "Damn, our amnestics shipment got delayed and we're gonna run out" would be a worrisome one. What happens if an object researchers didn't know was explosive blows out the door of its containment room during testing, and facilities and maintenance doesn't have a backup door handy? How long do those take to ship and how much do they cost? Even regular stuff would be a bother. How do you get an emergency run of Scotch tape, printer paper and assorted general office supplies to a base in Antarctica, because Researcher So-and-so screwed up the requisition order?

I gotta think the Facilities Maintenance and Site Engineering departments across the Foundation as a whole are some of the most creative people on earth in their respective fields. And also a lot of them are chronically stressed. If I had that job, I'd probably be back to chugging Maalox, reflexively glowering at researchers with deep suspicion, knowing their antics will probably result in lots of exasperating (and expensive) work my team will have to do to clean up after it.