A guy stood through most of a nearly seven-hour Anchorage-to-Philadelphia flight last July because he couldn’t stand sitting next to a 400-pound sea lion whose massive girth took up half of the standing-guy’s seat. The solution is simple, obvious and considerate to all parties. People who are absurdly obese (and there’s a very simple way of determining who’s excessive in this regard) have to pay for two seats. If they don’t like it, tough.