Sweltering heat, Putin's early exit and a three-way handshake THEY came, they saw, they spoke, they sweated. After a build-up that promised shirtfronting, unruly protests and mass arrests, the Brisbane G20 summit proved to be most memorable for its relaxed atmosphere and sweltering heat. In 35-degree temperatures, not even protesters could summon the energy for much resistance. The worst behaviour on day two of the summit amounted to the torching of a few Australian flags by indigenous rights activists. Burning issue ... An Aboriginal protester burns the Australian flag during a March from Roma Street Forum protest while the G20 is held in Brisbane. Photo: Philip Norrish Source: News Corp Australia G20 COMMUNIQUE: Leaders agree to fight climate change Certainly the heat seemed too much for Russian President Vladimir Putin who packed his bags and headed back home before the leaders" lunch, saying the work he had come to do was done. Despite speculation it was the cold shoulder from fellow super powers that made up his mind, Mr Putin told reporters Australia's Prime Minister Tony Abbott had created a "wonderful atmosphere" and the meeting was "constructive and productive." Russian home ... President Vladimir Putin about to board his plane, leaving Brisbane after the G20 meeting. Pic Mark Cranitch Source: News Corp Australia India's Prime Minister Narendra Modi also had praise for our PM tweeting his "hospitality was wonderful!." "Thank you for the very warm welcome," Mr Modi said, with no apparent pun intended. Mr Abbott had his own awkward moment when he engaged in a bizarre three-way handshake with the US President and Japanese Prime Minister Shinzo Abe. No one seemed to know how to gracefully break the moment, standing frozen in the flash of gleeful news cameras. One of the more memorable moments of the G20 - the three-way handshake between US President Barack Obama, Australian Prime Minister Tony Abbott and Japanese Prime Minister Shinzo Abe. Pic: News Corp Source: News Corp Australia Away from summit central at the Brisbane Convention and Exhibition Centre, 5500 police went about their job of keeping the world's most important people secure. Early in the day two F18 jets were reportedly scrambled at the arrival of an unidentified ship off the coast. An Australian Coast Guard vessel paid a visit and deemed the boat to be safe. A man was searched near the entrance of the Marriott Hotel where US President Barack Obama stayed, but later released without charge. Top level security was of little concern to South Korean President Park Geun-hye who wandered away from minders to wave and bow to supporters outside her hotel. Friendly ... South Korea President Park Geun-Hye waves to supporters on the way to G20 summit. Pic: Jack Tran/News Corp Source: News Corp Australia Her attitude mirrored that of German Chancellor Angela Merkel who changed the whole "uptight" perception of the G20 Friday night, by posing for a selfie at a popular Brisbane watering hole. As Brisbane residents trickled back into town after escaping in the thousands to alternative locations, the congratulatory backslapping was well underway among organisers. The director of the US Secret Service praised Queensland Police for a job flawlessly done and Mr Abbott said it had been "a weekend of achievement." No-one even mentioned the near $500 million cost as rows of metal barricades came down, signalling a return to relative normalcy. Turkey will be the next to host the G20 in 2015. Originally published as Hot but happy end to G20