Something as small as getting into a heated argument in public, accidentally taking an item you didn’t pay for, overstaying a visa, or even grabbing someone else’s umbrella or bike thinking it was yours can escalate further than you could imagine and have you arrested before you’ve even had a chance to explain.
Is this actually true or just fearmongering? I mean really, no chance to explain? Sounds as dumb as being forced into a psychiatric ward for wearing a pink shirt.