s31523 writes: "It has happened to all of us. You walk down the narrow airplane to your seat only to find someone sitting next to you that is extremely overweight. An Australian nutritionist is urging airlines to charge obese people more for their tickets. Even here in the states, Southwest Airlines already has a similar policy, which states "Many Americans are "overweight" or "clinically obese." . . . If a Customer cannot lower the armrest (and is unable to comfortably travel with it in the down position), he/she is required to pay for the additional seat occupied""