A routine work trip from Denver to San Francisco turned into a small but memorable lesson in airline upgrade etiquette for one traveler, after a moment of hesitation cost him and his wife a shot at First Class. The experience was shared on Reddit by user HobbitFootAussie, who recounted declining a First Class standby option during check-in because he thought it would separate him from his wife. The couple, who were traveling together rather than his usual solo work trips, appeared high on the