Honking Twice
In the military, the standard practice is to honk twice so that others are warned that you’re backing up. When they go back to civilian life, ex-soldiers still do this by force of habit.
Honking Twice
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The Flag
The American flag symbolizes the entire United States of America, so great respect should be shown to it. When soldiers see the flag is raised, they will immediately stand, even saluting at times. Definitely no knee-droppers here.
The Flag