I joke with people that I only know "restaurant Amharic" which is not far from the truth. I know how to order basic things and how to say thank you and so forth. On my recent trip to Jimma, this ability was not quite as useful as I had hoped. I stumbled in to the restaurant of the Jimma Central Hotel ("the best place in town") before anyone else. The waiter appeared immediately. I ordered large coffee with small milk, some mango juice and eggs with toast. He looked confused. I repeated slowly. My Amharic pronunciation has been compared to that of a small child, often providing amusement for my Ethiopian companions. Still, the waiter didn't understand. So I switched to English and he seemed to finally grasp what I wanted to eat.
It didn't occur to me until I was on the plane going home that night: In Jimma they don't speak Amharic. They speak Oromifa.