Imagine calling and telling Yohan you want to visit their dorm but yohan tells you he is not in the dorm for he has a schedule. He says Donghan and cookie, seokhwa's puppy, are the only ones at the dorm right now. You say "Oh I wanna talk to Donghan oppa, haven't talked to him for a while. I will just wait for you there. I have something for cookie too. I'll be at the dorm in a minute-" but Yohan, knowing you have that little crush on Donghan stops you from talking and says, "Oppa? Donghan oppa? You don't even call me oppa now you are using it to other people? Fine. Go to the dorm. Do it, you're dead later."