An American friend asked me to teach him Taiwanese. He asked me how to say "nine". I said kgao. He then asked me how to say "thick". I said kgao. He then asked me how to say "dog". I said kgau. He then asked me how to say "monkey". I said kgao. He then asked me how to say "arrive". I said kgao. He then asked me how to say "enough". I said kgao. He then asked me how to say "hook". I said kgao. From that day onward, he never asked me about learning Taiwanese again.