Is there no end to this mass dive-ocide in Denver? Don's Mixed Drinks (or Don's Club Tavern, technically, but no one has ever actually called it that) is signing off, following in the quickly fading footsteps of the 15th St. Tavern. If either of these classic dive bars have been close to your heart, hurry on down for one last beer-and-a-shot or a final round of pool while you still can.