Waiter! There’s a monkey server wearing a human mask in this restaurant

OK, so they’re not quite at the rank of monkey butlers (yet), but the two adorable primates who serve beer and hot towels to patrons at Japan’s Kayabuki restaurant seem like they could handle any great Remains of the Day-style household with those quick, agile steps and nimble shoulder-climbing techniques.

Except for the human masks Yat-chan and Fuku-chan wear when they enter the dining room. Now those are creepy. But owner Kaoru Otsuka insists there is no monkey exploitation going on at his Utsunomiya sake house.

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In fact, Oddity Central notes that local authorities have even certified the pair to wait tables for two hours each day. Yat-chan, a 16-year-old monkey and the older primate of the pair, started the trend one day by aping the behaviour of his human.

“Yat-chan first learned by just watching me working in the restaurant,” Otsuka said. “It all started when one day I gave him a hot towel out of curiosity and he brought the towel to the customer.”

Kayabuki has been noted on various travel sites for its poor food and even worse service. Except who can stay mad when there’s a monkey handing you a Sapporo? That's right. No one.

“We called out for more beer,” one customer said of Yat-chan, “and he just brought us some beer. It’s amazing how he seems to understand human words.”

The presence of his talented duo has no doubt been a boon for Otsuka, who told the Daily Mail back in 2008 that he has three baby monkeys he’s training to add to the roster.

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Except there’s something more than a little unsettling about two monkeys who belong in the wild slinging brew at a noisy restaurant for the amusement of humans.

No matter how many soya bean tips they receive at the end of the night.