its dress code to prohibit the sandal variants and those with holes, citing safety concerns, but allowed closed-top "Professional" and the healthcare-focused "Rx" Crocs to be worn. Over 100 hospitals in Canada were advised to implement similar policies. Blekinge and Karolinska University hospitals in Sweden banned the wearing of "Forsberg slippers" (Foppatofflor) by staff, due to high voltage static electricity buildup which was observed to interfere with electronic equipment. City hospitals in Vienna, Austria, announced banning Crocs, often worn by nursing staff, to comply with antistatic requirements. Crocs announced the Fuse and two others in 2009, formulated to dissipate static electricity in accordance with European standard EN ISO 20347:2004 (E), for use in the medical sector. Cultural influence Sales of Crocs increased dramatically starting in 2006, with The New York Times stating that first-quarterly sales roughly tripled from 2006 to 2007. A 2006 article in The Washington Post described the phenomenon: "Nor is the fashion world enamored of Crocs. Though their maker touts their 'ultra-hip Italian styling,' lots of folks find them hideous." In 2007, then-U.S. President George W. Bush publicly wore black Crocs with socks. Comedian Bill Maher stated during a 2007 episode of his show Real Time that people should "stop wearing plastic shoes". A 2007 episode of The Daily Show featured comedian Rob Corddry as a reporter satirically following up on that year's lewd conduct arrest of Senator Larry Craig, with Corddry stating that a person wearing Crocs is signalling that "anything goes". In 2008, fashion consultant Tim Gunn told Time, "[The Croc] looks like a plastic hoof. How can you take that seriously?" A 2008 anti-Crocs essay in Newsweek by ice hockey player Steve Tuttle generated much response from readers who both agreed and disagreed with it. In 2009, then-First Lady Michelle Obama was spotted wearing Crocs with her daughter. Crocs were ranked the sixth worst thing to happen to men in 2007 by Maxim. In 2010, Time magazine listed Crocs as one of the world's "50 Worst Inventions". The blog "IHateCrocs.com" was founded by two Canadian college students; one of its founders, Kate Leth, referred to the shoes as "hideous". The website "CrocFans.com" documented uses of the shoes. The Facebook group "I Don't Care How Comfortable Crocs Are, You Look Like a Dumbass" has been mentioned in the media. In the mid-2010s, public perception of Crocs began to shift. In 2015, Prince George was photographed