

Not as a kid, but as a young adult entering the workforce:
Never trade shifts with anyone.
When I heard this advice, I thought that this would be a dick move, because you are supposed to help out each other, since everyone appears to be in the same position (or metaphorically in the same boat). But some time later I witnessed what was meant: I had two coworkers that engaged in a shift-trade. One of the coworkers had an appointment and so he asked another coworker if they can switch shifts. The other one agreed to cover the shift, but he never got the favor back, as if that agreement never took place.
It turns out, that at work, everyone ist fighting for himself, and you should, too, catering to your own interests.
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I went to school in Germany. Over the years we watched as a class
Sometimes, I think it was in 6th grade, we had lesson in a room that was permanently equipped with a TV and VCR (as opposed to these portable TV carts a teacher had to roll into the room). When we behaved well (and we did!), we were allowed to watch MTV for the last remaining 10 - 15 minutes before lesson was dismissed.
Ergänzend zur genannten Soße hier noch eine zuätzliche Aufbereitung als Video Simplicissimus - Der absurde Reichtum der Kirche
Bei mir in der Grundschule (über 30 Jahre her) war es so:
Dafür gab es aber an keiner Schule, die ich besucht habe, spezifische Heftfarben (z.B. Mathe = Grün)
At work we have computers from Wortmann. They also offer laptops. They come with Windows 11 pre-installed, but I’m certain that you can install an OS of your choice. These devices are distributed through IT Services that usually cater to other businesses, but as far as I can tell from their website they also offer to sell to normal customers. They seem to offer in Germany, France, Netherlands, Spain, Switzerland, United Kindom Poland, Japan and Asia