> This article doesn't touch much about why plumbing is hard. I'm from Poland so I'm not only IT but also a plumber ;)
I'm guessing that is a reference to Omid Djalili sketches about Polish plumbers:
* https://www.youtube.com/watch?v=K85ZtXnMxbM
* https://www.youtube.com/watch?v=P8mjzu0Runo&t=1m