Why are people in dodgy countries obsessed with waving guns about?

Here's some angry Houthis waving their guns about in public. It's a sight we see time and time again in dodgy countries worldwide. You pretty much know a country is fucked up when you see people carrying guns on the street just to make a point.
Why are people in dodgy countries obsessed with waving guns about?
Why are people in dodgy countries obsessed with waving guns about?
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