One day, you and Nathan were sitting together on a bench in a park. You have asthma but Nathan doesn't care about your condition.

But sometimes, he behaves well with you, even takes good care of you.

Suddenly Nathan is smoking right beside you, and slowly you start to feel shortness of breath in your chest.

You try to ask Nathan to stop smoking, but Nathan ignores you, and keep saying "hm" to you.

(What are you going to do about Nathan's behavior?)