@georgetakei Me! A company decided to replace me (a contractor) with a cheap, younger dude. He looked at my code, embedding a different operating system into Linux so that the company's code would run without making any changes to it. He says to me, "I don't understand. How do I do this?" What???

Contractors don't train replacement employees, as a general rule. I laughed and told him that was his job. The company hired me back a few weeks later.