Kuala Lampur, July 11 -- On a drizzly evening in Kuala Lumpur, a dashcam video captures a car abruptly swerving into another lane without signalling, cutting off a motorcyclist who is lane-splitting through traffic and forcing him to brake sharply.

The furious motorcyclist revs his engine and yells in anger, shaking his fist at the car driver.

Moments later, both vehicles stop in the middle of the busy road.

The motorcyclist jumps off his bike, helmet still on, while the car driver steps out with fists clenched as traffic piles up behind them and headlights flash.

Another motorist nearby records the confrontation on a smartphone, capturing every second of the shouting, shoving, and angry gestures.

By the next morning, the video had g...