A Chinese family eating lunch in Kuala Lumpur, Malaysia

A Chinese family eating lunch in Kuala Lumpur, Malaysia in August 2017

Two women at a restaurant in Loei, Thailand

Two women at a restaurant in Loei, Thailand in June 2016

A leaf half-eaten by insects at Gapuwiyak, Northern Territory

A leaf half-eaten by insects at Gapuwiyak, Northern Territory in June 2009

Rim Le Seafood restaurant in Phang Na, Thailand

Rim Le Seafood restaurant in Phang Na, Thailand in May 2016

Hmong women eating sugar cane in Sapa, Vietnam

Hmong women eating sugar cane in Sapa, Vietnam in January 2012

Sex all you can eat poster in Victoria Street, Richmond, Melbourne

Sex all you can eat poster in Victoria Street, Richmond, Melbourne in October 2013

Sign for eating cake outside a cake shop in Rosebank, Johannesburg, South Africa. 100 % pleasure, satisfaction, quality and flavour and a little bit of regret!

Sign for eating cake outside a cake shop in Rosebank, Johannesburg, South Africa in February 2015. 100 % pleasure, satisfaction, quality and flavour and a little bit of regret!

Busy people on the go in Osaka, Japan. He is texting and she is eating

Busy people on the go in Osaka, Japan in March 2015. He is texting and she is eating

Sign for sale in a shop in Clarens, South Africa. Dozens of people have eaten here and gone on to live normal lives

Sign for sale in a shop in Clarens, South Africa in February 2015. Dozens of people have eaten here and gone on to live normal lives

People eating at the Night Market in Khon Kaen, Thailand

People eating at the Night Market in Khon Kaen, Thailand in May 2016

Feeding a giraffe at the Lion Park, Johannesburg, South Africa

Feeding a giraffe at the Lion Park, Johannesburg, South Africa in February 2015

Sign on the wall of a restaurant in Prague, Czech Republic. Stop diet. half roast duck with dumplings and red cabbage or a knuckle of pork crisply roasted!

Sign on the wall of a restaurant in Prague, Czech Republic in February 2014. Stop diet. half roast duck with dumplings and red cabbage or a knuckle of pork crisply roasted!

Please pay cashier before eating sign on a fridge with fresh food at Talad Thai grocery store in Abbotsford, Melbourne, Victoria

Please pay cashier before eating sign on a fridge with fresh food at Talad Thai grocery store in Abbotsford, Melbourne, Victoria in November 2016

Couple eating cake in Huskisson, Jervis Bay, NSW

Couple eating cake in Huskisson, Jervis Bay, NSW in September 2013

A food stall in Singapore. No tipping please and consumption of non-halal food is not allowed in this premises

A food stall in Singapore in February 2014. No tipping please and consumption of non-halal food is not allowed in this premises

Sauce and serviettes at a food stall in Sapa, Vietnam

Sauce and serviettes at a food stall in Sapa, Vietnam in January 2012

Women having lunch in a food court in a shopping centre in Chiang Rai, Thailand

Women having lunch in a food court in a shopping centre in Chiang Rai, Thailand in May 2016

People eating in a food court in a shopping centre in Chiang Rai, Thailand

People eating in a food court in a shopping centre in Chiang Rai, Thailand in May 2016

Fon eating currywurst in Berlin, Germany

Fon eating currywurst in Berlin, Germany in February 2014

Chinese woman eating on a boat in Jervis Bay, NSW

Chinese woman eating on a boat in Jervis Bay, NSW in September 2013