This question is discussed all over the internet, but it seems to be just a voting procedure. I'd like to get a high-quality answer, and, since I couldn't find it on SE, I'll ask it again here.
With the manual transmission, when parking on a horizontal surface, should I leave my car in neutral plus the hand-break or in gear plus the hand-break?
Strangely, I get the following impression from the forums: In schools, they teach to park in neutral, with the hand-break only. And the experienced drivers then recommend to forget it and park in gear.
I seem to understand the reasoning behind the "in gear" approach, but I do not understand why the schools teach it differently.