My favorite temper tantrum was on a EWR-HKG flight last year. At the gate, a customer was extremely upset that his BF upgrade didnt' clear. He yelled and screamed, waving his Gold OnePass card around, saying "$@#$ do you know how important I am to CO? do you know how much money I spend with you? you better $#$$@# upgrade me now!"

Fortunately for the rest of us flying, and unfortunately for him, he never got his upgrade. And the Port Authority police quietly removed him from the gate area.

I think the funniest part was that he thought his Gold OnePass card meant something huge