When you sit down in a chair but due to your mass the air not only dispalces but the gravity causes it to
wrap around your thighs that as you sit down it creates a draft upwards. This brings the odors along with it so if you have an unwashed ass, grundel, or bad ball stank caused by fumunda you will have to smell yourself briefly. Those close by or passing will also be in danger from being within smell
distance as this will have created a
temporary forcefield of odor surrounding oneself.