Reporting from Jakarta, Indonesia - For decades, Uni Histayanti has performed the enigmatic movements of her country's traditional pendet dance. She learned the rhythms as an infant and years ago opened a dinner theater here in the Indonesian capital where, dressed in native costume, she performs nightly.
As she flutters her arms bird-like, darts her eyes and tilts her head at exotic angles, she invokes the welcoming spirit of the Hindu-majority Bali island where it originated centuries ago.
That's why it floored her to hear that neighboring Malaysia had reportedly tried to seize the pendet as its own. It's pure cultural piracy, Histayanti insists. And it makes her mad.
"It's a symbol of our heritage, not theirs," she said as she applied makeup in a backstage dressing room of her theater. "If you have something and someone tries to steal it, you take it back."
These two predominantly Muslim neighbors, which share ethnic and physical traits, are engaged in a tense struggle for superiority.
Nowadays, the rift is widening. It's cultural. It's political. And recently, it has gotten personal.
Many Malaysians dismiss the teeming Indonesian archipelago as a source for the low-class maids, parking-lot jockeys and waiters who work in Kuala Lumpur and other cities in Malaysia.
For their part, Indonesians icily counter that Malaysia is so desperate for a culture that it will resort to anything -- even outright theft -- to acquire one.
The pendet dance tiff, the latest slugfest over so-called proprietary traditions, emerged this summer when rumors spread that Malaysia was responsible for television ads claiming the invention of the pendet dance.
Within days, a private company producing a program for the Discovery Channel admitted they were behind the ads and that they had mistakenly picked the wrong dance to promote their upcoming program. The Malaysian government, they explained, had nothing to do with the foul-up.
But it was too late. Indonesia's feathers had been ruffled.
Indonesia's tourism minister demanded a written apology, which he said was needed for the record.
Meanwhile, outraged Indonesians waged a "Crush Malaysia" campaign reminiscent of a nationalistic tirade in the 1960s.
This time, mobs burned the Malaysian flag, which features a crescent moon and sun, and threw rotten eggs at the embassy in Jakarta.
For days, protesters wielding sharpened bamboo sticks stopped traffic in search of Malaysian motorists and pedestrians. Six Indonesians were arrested. No one was injured, but the Malaysian Embassy complained about the safety of its citizens.
Internet hackers attacked Malaysian government websites. One nationalist youth group began collecting signatures on the Internet for volunteers willing to go to war with Malaysia.
Though the leaders of the youth group concede that such a face-off is extremely unlikely, they say they have stockpiled food, medicine and weapons such as samurai swords and ninja throwing-stars.
Such high jinks baffle many Malaysians, not to mention Indonesians.
"These guys with pointed sticks, they're from the loony left," said Ong Hock Chuan, a Malaysian-born public relations consultant who lives in Jakarta. "If it wasn't Malaysia, they'd vent their anger at something else."
But many others here say the resentment is widespread and runs deep.