Motoring in Thailand is described by some as an out-of-body experience, and bus and truck drivers are frequently demonised as creatures from the underworld because of their dangerous driving habits.
The same sentiments are found in China, but harassed motorists there have found a new way to frighten the living daylights out of drivers who intimidate them: ghostly apparitions of ghouls, spooks and wraiths drifting across the back windows of their cars like a bad movie scene.
In the glare of headlights, these apparitions come to life and seem to float in the air, serving a warning to any superstitious driver to "back off".
It has caught the imagination of Thai social media users, some of who decry the stickers used to create the ghostly effect as too dangerous. But others see merit in them in a country which is well-known for its superstitious beliefs while laying claim to being home to some of the world's deadliest roads.
Many of the reflective transfers feature pale youngsters with dark long hair and menacing expressions, while others are images of snarling wolves and women with bloody mouths.
Among the websites to sell the stickers is Taobao, with hundreds of customers complimenting their effectiveness.
But in a surprise example of initiative, the Land Transport Department has jumped in ahead of the ghostly craze arriving in Thailand by warning Thai drivers not to adopt it.
Department director-general Sanit Promwong said in a statement on Saturday that the apparitions could affect drivers who are deeply susceptible to other-world imagery.
He said the depictions of the ghosts do not show up during the day, only at night when reflected in the headlights of a car behind.
While the stickers have yet to arrive in Thailand, Mr Sanit said the department had decided to get ahead of the craze by issuing a warning of the risks.
Any driver caught with the stickers will be fined up to 2,000 baht.