I used to work for a company that made industrial ink jet printers - the sort on production lines that put on best before date etc. Interesting tech, and we also made ones that printed white ink - quite complicated as that's a colloidal ink so need constant stiring.
Anyway, some of these white ink printers went on a milk production line.
I think you may see where this is going. The workers, when they fancied some time off, deliberately put milk in to the printer instead of ink (Der, it's all white innit?). This very effectively takes the machine out of action for some hours to be flushed and reinstalled. Whilst machine is offline, production line stops.
That's what you have to deal with in the real world. Deliberate sabotage (and very expensive sabotage at that)., And these are adults.
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed. Here's an example...
"My grief counseller just died, luckily, he was so good, I didn't care."