Korben (and his poor neighbor) aren’t the only ones to deal with the yellow circles. Apparently they appear everywhere.
When Right Arm fails to convince the counter staff for Fhloston Paradise that he is Korben Dallas. Knowing that he works for a sociopathic killer, he gets upset. As the doors to gate 18 close behind her, the ticket taker smiles and says, “Sorry, sir, boarding is finished!” and the platform on which she stands lowers her out of sight. At the same time a pane of glass with the familiar two yellow circles rises up. In his frustration, Right Arm shouts, “I don’t believe this!” and pounds the glass(?) around the booth.
Instantly, a whooping warning is heard, and three columns of computer-controlled guns drop from the ceiling, clacking into place as if they were being armed. Two columns are behind him and one directly in front, each with two guns, pointing a total of six automatic weapons at him. Red LEDs blink on the column in front near a camera and a voice sternly warns him, “This is not an exercise. This is a police control. Put your hands in the yellow circles…”
The scene is played for laughs, as an example of an inappropriately harsh reaction to an expression of frustration. But the design of the system is worth noting. The compliance technique is designed to be easy to communicate and comprehend. The recorded voice could have said something like “stand in a spread-eagle position against the glass” but that is too wordy and leaves lots to interpretation. Giving the user very basic signals, i.e. yellow circles, and a very unambiguous task, i.e. putting your hands in the circles, is as clear as it could be. (Though I’m not sure what would happen if you were someone with only one hand, or no hands, or a prosthetic hand.)
The red lights, stern recorded audio, mechanical sounds, and whooping sound all let Right Arm know the gravity of the situation he’s in. Even the fact that they drop and swivel toward him give him the clear signal that if he tried to run, these weapons could track him. The sound appears behind him first, causing him to swivel, where he’s met with the four menacing barrels. He is first disoriented and then cowed.
Sure, I’d really hate to live in such an oppressive police state where expressing frustration in public is met with possible death from a robot, but looking at it purely from the perspective of the signals and instructions, it’s well done.
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