Why are you trying to stifle your laughter in a serious situation

A person is attempting to suppress their laughter during a solemn meeting. Their cheeks are slightly puffed out, with lips tightly pressed together. Their eyes are watering slightly as they try to keep a straight face. Their body is slightly hunched over in an effort to control their amusement, all while the surrounding people are engaged in serious discussion. In the background, a presentation slide is being projected onto a white screen. The room's light is dimmed, allowing the slide's content to be clearly visible.