It also makes it way easier to take your vacation time.
If your employer is harmed by you taking vacation, they will find ways to make you miserable for it.
Ouch, I know this one well and it almost cost me my marriage.
This system that I had hacked together, built out and maintained, kept on growing in size, complexity, attributable revenue and potential compliance liabilities. Within the year, I had to call the execs into a meeting to drive home the point that this wasn't a tenable way for us to operate. Everyone had known as much but it was still a tough pill to swallow. I let them get too spoiled at a huge cost to my own mental health.
I had to paint a dire picture to make my case that the system had to be rebuilt from scratch in order to be integrated into the main infrastructure. I ended up leaving a few months later as the rebuild was nearing completion. A couple of months down the road I was surprised to learn that they were still using a part of my system alongside the rebuild. Apparently their architecture couldn't support an algorithm that this component had relied on.
What a mess!