-- Is it still useful to wear these things?
- Oh, yeah! More than ever, mainly on the road. This is where they are most needed.

-- Would you mind to explain to me why?
- Because of the twisted wires.

- OK!... But... What is this?
-- They are cables composed of two exposed conductive wires, separated by an insulator, and connected to an electric source. They place them across the road to catch the fugitives.

- Most of the time they are seen them too late because they are so much thin. And without protector, this is like losing consciousness while driving...

- ?!?
-- !?!