The authorities do not know exactly how many people have been killed warbling “My Way” in karaoke bars over the years in the Philippines, or how many fatal fights it has fueled. But the news media have recorded at least half a dozen victims in the past decade and includes them in a subcategory of crime dubbed the “My Way Killings.”

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But in karaoke bars where one song costs 5 pesos, or a tenth of a dollar, strangers often rub shoulders, sometimes uneasily. A subset of karaoke bars with G.R.O.’s — short for guest relations officers, a euphemism for female prostitutes — often employ gay men, who are seen as neutral, to defuse the undercurrent of tension among the male patrons. Since the gay men are not considered rivals for the women’s attention — or rivals in singing, which karaoke machines score and rank — they can use humor to forestall macho face-offs among the patrons.

In one such bar in Quezon City, next to Manila, patrons sing karaoke at tables on the first floor and can accompany a G.R.O. upstairs. Fights often break out when customers at one table look at another table “the wrong way,” said Mark Lanada, 20, the manager.

“That’s the biggest source of tension,” Mr. Lanada said. “That’s why every place like this has a gay man like me.”

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“In the Philippines, life is difficult,” said Mr. Auxlero, who repairs watches from a street kiosk, as he railed about government corruption and a weak economy that has driven so many Filipinos to work overseas, including his wife, who is a maid in Lebanon. “But, you know, we have a saying: ‘Don’t worry about your problems. Let your problems worry about you.’ ”