Here's this week of photos that prove we live in a mad world.
A passenger not wearing pants stands as he reads a book inside a subway train during the "No Pants Subway Ride" in Mexico City, Mexico. The event is an annual flash mob and occurs in different cities around the world, according to its organisers. Photograph: Carlos Jasso/Reuters
Competitors chase the ball during a "Tuk Tuk" (Three-Wheeled) Polo game in Galle. Photograph: Dinuka Liyanawatte/Reuters
Australian dog trainer and former surfing champion Chris de Aboitiz rides a wave with his dogs Millie (left) and Rama off Sydney's Palm Beach. An Australian dog trainer and former surfing champion is using the discipline of surfing as a way of teaching owners to build healthy relationships with man's best friend. Photograph: Jason Reed/Reuters
A cat stands near a horse in Beirut, Lebanon. Photograph: Mohamed Azakir/Reuters
A skater wearing a heart-shaped costume skates during a Valentine's Day celebration at the Medeo skating rink in Almaty, Kazakhstan. Photograph: Shamil Zhumatov/Reuters
A participant falls on vintage skis during a traditional historical ski race in the northern Bohemian town of Smrzovka, Czech Republic. Photograph: David W Cerny/Reuters
Bride Jintara Promchat, 28, and groom Kittinant Suwansiri, 29, fly while attached to cables during a wedding ceremony ahead of Valentine's Day at a resort in Ratchaburi province, Thailand. Four Thai couples took part in the wedding ceremony arranged by the resort. Photograph: Athit Perawongmetha/Reuters
Men wearing high heeled shoes take part in a Guinness World Record attempt for the largest amount of people running in high heels in Melbourne, Australia. The World's Largest High Heel Race 2016 raised funds for the The Warwick Cancer Foundation. The current record is 967 people, completed in Indiana, USA in 2010. Photograph: Scott Barbour/Getty Images
The recently unveiled new statues of Paul McCartney, George Harrison, Ringo Starr and John Lennon of the Beatles stand outside the Liver Building at Liverpool Waterfront in Liverpool, England. New research commissioned by Liverpool City Council has shown that the legacy and continued popularity of The Beatles adds GBP 81.9 million to the local economy each year and supports 2,335 jobs. Photograph: Christopher Furlong/Getty Images
Monkey sculptures stand at Quancheng Road in Jinan, Shandong Province of China. Photograph: ChinaFotoPress/ChinaFotoPress via Getty Images
A guest in an unusual inflatable outfit attends punk themed 'On'Off Presents Punk Diversity' fashion show during London Fashion Week in London, England. The show is part of Punk London which is a series of events across the capital in 2016 to mark 40 years since the birth of punk culture. The show features three designers with 10 designs each. 'On'Off Presents' was established in 2007 to showcase designers that they believe are the ones to watch. Photograph: Chris Ratcliffe/Getty Images
Monkeys perform on the monkeys gala at Crazy Appleland Theme Park to mark the Year of the Monkey, in Hangzhou, Zhejiang Province of China. Photograph: /Reuters China
