You can't take the sky from me

Every once in a while, when somebody asks me how I'm feeling, I answer "Still flying". While the people who used to asked me that understood exactly what I mean, I feel most people I tell it to now don't, and they think it's all going awesome. I clearly should stop saying it, because they end up thinking I am much better than I really am, but it's not my fault if they are uneducated!

So, when I say that I'm still flying, this is what I mean:

Simon, a doctor, has just been invited to form part of Mal's spaceship crew. They haven't exactly got along well so far
Simon: I'm trying to put this as delicately as I can... How do I know you won't kill me in my sleep?
Mal: You don't know me, son, so let me explain this to you once. If I ever kill you, you'll be awake, you'll be facing me, and you'll be armed.
Simon: Are you always this sentimental?
Mal: Had a good day.
Simon: You had the Alliance on you, criminals and savages, half the people on the ship have been shot or wounded including yourself, and you're harboring known fugitives.
Mal: We're still flying.
Simon: That's not much.
Mal: It's enough.

Once more, go see Firefly. Like now.
There will be a rather silly picture later. I seemed to have knitted some kind of monster. You'll see.