The San Francisco Giants World Series victory parade kicked off officially a little after noon Friday with loud cheers, confetti, marching bands and the Giants themselves, sending tens of thousands of fans lined up on Market Street into giddy fits of excitement.Hundreds lined up in the wee hours of Friday morning, hoping to grab the best spot to catch a glimpse of MadBum, Panda and Pence. "Euphoria": Giants Return Home After World Series Win Hunter Pence and Parades are like #SFGiants and October. They should happen every year #SFGParade https://t.co/4b5uCP7cpL Rain Likely to Fall on Trick-or-Treaters, Giants Parade — World Champs (@SFGiants) October 31, 2014 The parade started at Steuart and Market streets, ending with a celebration at the Civic Center Plaza and City Hall. 40 Arrested During Giants Victory Celebrations: Police "Yes! Yes! Yes! we did it," Mayor Ed Lee said to excited crowds in front of City Hall. "This is a story that will grow to be legendary ... Is MadBum a man or a machine? Is there anything I can do to keep Panda in San Francisco?" Handing Giants coach Bruce Bochy the keys to the city, Lee declared Oct. 31 as "San...