I always assumed that scanning a boarding pass means it's marked as "used" and would flag up if scanned again. Or at the very least, previous scans would immediately show up so the attendant can verify.
What I wrote was a bit unclear: They want to avoid that you buy a low cost ticket and resell it to somebody else a day before the flight (because you either cannot make it or because you want to make money).
As is OSL / Oslo Gardermoen, but on occasion they will use the PA to find late pax, at least on international flights. Presumably there's more paperwork if there's a no-show, I don't know.
Anyway, sitting in a bar there a few years ago, waiting for my flight, I hear a series of progressively more strongly worded announcements for pax X and Y to get to the gate or else.
Noone shows. Then the 'This is absolutely, positively, make no mistake about it final call for flight such-and-such, gate closes in 30 seconds.'-announcement.
At which point the two men at the table next to me get up and stroll over to the nearmost gate.
I almost fist-pumped when the gate attendant just looked at them (eyes ablaze!) and said 'Sorry, gate just closed!' then proceeded to inform whoever was listening on the VHF that pax X and Y were no-shows, presumably to have their luggage located and offloaded.
I once was one of 10 unrelated paxes that missed their flight because announcements were very quiet and boarding window was very short. Not sure whether 10% of the flight manifest were all entitled or the gate attendant was mean.
Indeed! Just a quick question to satisfy my curiosity - seeing as you fly out of Trondheim, work with embedded systems and have a background in physics, would you happen to be named Jostein and have a dark past frequenting Omega Verksted and occasionally also Akademisk Radioklubb c. 2000?
