On Saturday night, a man tried to rob a Dunkin' Donuts through the drive-thru window.  But the cashier managed to fight him off by throwing HOT COFFEE on him.  And as he backed off, she even shouted a catchphrase . . . quote, "Go run on Dunkin'!"  Which is an improvised twist on the Dunkin' Donuts slogan "America runs on Dunkin'."  Police are still tracking down the robber.