> The acoustic warning signal is meant to warn other traffic participants of imminent danger - which includes the intend to overtake (outside of towns). There is no fine for that.

Honking before overtaking is completely fine, I know my rules. Imminent danger honking is allowed everywhere, even in towns. It's completely not allowed honking to mean "drive faster".

> Careful there: Your scenario does not exactly paint you as a hero

You are missing context, perhaps I should have given the full picture: The road IMHO wasn't suitable to drive at 50km/h. It was curvy with many parked cars on the sides. I wasn't trying to annoy anyone. I even started breaking earlier before turn so it wasn't a harder break, which may have saved us from an accident. Also 43 is nowhere near going "too slow". You need to drive 25 or less, so that it becomes a dangerous situation. The instructors would give you a warning in an exam before failing you if you do it twice, if you drive less than half the limit.

You can also drive 60km/h in a country road (limit 100km/h), and as long as you do not go below 50 for an extended period of time, you don't need to worry. If you are going slowly just to piss someone off, or you are creating a dangerous situation (for example, blocking the flow of the traffic when there's cross-traffic), that's a different story.