Hay Fever

Before the English class began my teacher told me "How are you?" and today my reply was "Very fine because the weather is fine."

"Its not common in Japanese, isn't it? Many Japanese people has hey fever, so during this season they say they are bad when weather is fine."

Hay fever is allergy to pollen.

"Don't you have any allergy?"

"No."

"Very good!"

Actually I have allergy to house dust. But I couldn't explain well in English then, so I answered easily. :-P