The only exception that airlines will sometimes do is to juggle around destination and alternate airports so that they can save some fuel on that (you have to have enough fuel to reach an alternate airport, and then 45 minutes in addition to that).
I also spend significant time on aviation/pilot forums, and I've literally never heard of "lots of paperwork" for any emergency that resulted in a safe, no injuries landing. The topic comes up regularly in the "should I have declared an emergency or not?" discussions, the common argument against is "I don't want the paperwork" (a strange trade off against a life-safety question in any case), and the most I've heard as routine followup is a phone call from an inspector.
My experience is exclusively US, so perhaps it's different in other areas of the world.
The only issue I've ever caused was triggering a TCAS warning for a landing airplane because I was slow on starting a turn. Even though there were VFR conditions and we were at a safe dinstance, the other pilots said they had to report it as a matter of company policy, and my instructor had to make a few phone calls afterwards.
> At least two memorandums were sent to Ryanair pilots detailing the company's concern about what was described as "excess fuel explanations" -- a description of the reasons flight commanders have to give if they take on extra fuel over the recommended minimum fuel load.
Is "because it's only the minimum!" not a valid answer?
It was a "mayday" because they didn't have enough fuel to return to the original airport they were going to land at and/or to continue waiting in a holding pattern for another hour.
But think of a a hypothetical situation where low fuel situations somehow were common, unforeseeable and unavoidable. And if dropping a passenger could indeed make a difference between full crash or safe landing. It's a shitty situation, but it makes sense to give somebody a chute and kick them out, instead of letting all die.
But critically low memory situations aren't unavoidable. Not overallocating is one very easy solution.
Though Ryanair could well be heading down this route [1]
[1] http://www.independent.ie/irish-news/three-ryanair-mayday-ca...