In a crowded cafe, a young man named Reza sat in a corner, cigarette smoke billowing from his mouth. He enjoyed a cup of coffee and his favorite book, oblivious to the gaze of a woman at the next table.The woman, named Sarah, was working on a college assignment. Reza's cigarette smoke slowly approached, disturbing her nose. Sarah tried to hold back her cough, but the smoke grew thicker. She tried to move seats, but the cafe was already full.Suddenly, Sarah felt short of breath. She coughed violently, her face turning red. Reza, who noticed Sarah's anxiety, finally decided to put out his cigarette.Sorry, Miss. Is my cigarette smoke bothering you? Reza asked with a little guilt.Sarah nodded slowly, still out of breath. Yes, Sir. I'm allergic to cigarette smoke.Reza felt bad. He had always thought that smoking was a personal habit that did not bother other people. However, seeing Sarah in agony, he began to realize the bad effects of his cigarette smoke.