It's weird sometimes how you can get a risk premium for being easy to fire, but actually be very difficult to fire due to unique knowledge of some platform. Like being the only guy who can answer questions from the train repair technicians.
Not going to name names, but a person like that was discovered when his employer looked for the oldest serving employee and found out that it was a contractor whose contract featured an hourly rate one usually gets for short-term contracts, like +100%. His stay had been, shall we say, extended a bit.
To be fair in Germany the major part of the risk is hiring a wrong person from the start and no way to fire them, so companies are often happy enough to have medium-term contractors.
Not going to name names, but a person like that was discovered when his employer looked for the oldest serving employee and found out that it was a contractor whose contract featured an hourly rate one usually gets for short-term contracts, like +100%. His stay had been, shall we say, extended a bit.