> In the mountains of Italy, drivers give a short honk before entering a turn on a serpentine road, which usually can't be seen around. Swiss busses even have

> In the mountains of Italy, drivers give a short honk before entering a turn on a serpentine road, which usually can't be seen around. Swiss busses even have a special horn playing a piece (three tones) of Rossini's, Wilhelm Tell Opera Overture https://youtu.be/wMWEQdxMhdA https://youtu.be/wMWEQdxMhdA