At a doctor's office
A woman visits a doctor.
W: Doctor, I have a problem with gas(Onara) My farts never smell, and they are completely silent.
In fact, I have farted more than 10 times since I came here.
You didn't even know, because they are silent.
D: Oh, I see. Take this medicine three times a day for a week and please come back next week.
W: Oh, thank you very much.
She came back a week later.
W: Doctor, now my farts started to smell, but they are still silent.
D: Oh, that's great! Now you have no problem with your nose, so let's work on your ears today.