I sat on a NorthWest Plane over 2 hours on the approach, smack in the middle of a dozen other planes awaiting take off and over a mile from the terminal. The guy on my right smelled of Body Odor and the little frail 40 pound woman on my left was sucking on that fresh air valve hoping for anything near a taste of clean air.
It wasn't like they told us it would be two hours, it was just the opposite and we had updates every few minutes promising that traffic would start moving, of course after a while we didn't believe it either.
You get that Stockholm Syndrome in these situations, falling behind your captives because they control the food, okay a crappy sandwich and maybe peanuts - but we put faith in people like pilots and doctors and any professional who has (forgive the expression) earned their wings.
I do believe 2 hours was pushing our comfort limit, we also knew the pilot and crew were also suffering the delay which was reassuring, but you can't help people going insane after 8-12 hours in that stuffy tube, which to me looks like a boiler with seats it in. Just because you place a wig on a pig, don't make it a princess - a plane is not a luxury hotel that you feel cozy in if a blizzard blow through.
Jet Blue CEOs say there was NO EXCUSE for this and people will be held responsible.