I fell in love with gyudon from going to Yoshinoya while I lived in Japan. We used to have a Yoshinoya in the FiDi, but it closed a while back, and the only place I know that serves it is Sanraku at SFO. Searching in Chow and Yelp and MenuPages hasn't helped, because when I call those places they don't have it on the menu. I even went to Japantown and asked a bunch of people in various shops and hotels and everyone just shrugged and had no idea where to find it. Why is gyudon so freaking hard to find?