digg_url = 'http://digg.com/odd_stuff/Photos_Dore_Alley_Fair_San_Francisco_s_Leather_Sex_Fair'; (By Joe Kukura) Yesterday's Up Your Alley Fair is what the Folsom Street Fair used to be before all the tourists pushing baby strollers started showing up. More than 8,000 leather daddies -- and as many as perhaps a dozen biological women -- braved the cold fog wearing little more than a gimp mask and a smile to benefit PAWS, the AIDS Emergency Fund, and others. We tried to limit the......