Pal of SFist Julian (star second-grader at Starr King's Mandarin Immersion program -- ni hao, Julian!) picked up this "queer" dollar bill last week at 26th and Harrison in the Mission. We recall receiving these bills as babysitting payment back in the '80s, and they make great gift-accessories for kids as well. But we had never before noticed how interesting the back of the $2 bill is compared to all the other paper U.S. currency,......