Always agree on a price before accepting any sort of deal.

Especially with shady characters who look like they might have come from Sicily.

Especially in campaigns where there is no Sicily.

Transcript

{Obi-Wan and Luke are sitting at a table in the cantina with Chewbacca. Greedo, a confident, rakish-looking human, sits down.}
Greedo: Buongiorno! It'sa me! Greedo!
{beat}
Obi-Wan: Uh...
Greedo: Mamma mia! I'ma you pilot!
Obi-Wan: I... don't suppose there are any other pilots here?
Chewbacca: I assure you, my compagno here is fully accredited not merely as a pilot, but also as an instructor. You are in the safest possible hands.
Greedo: He'sa right!
Luke: Okay, let's go.
Chewbacca: Ah, there is the minor detail of our remuneration.
Greedo: Si, si! No pay, no fly!
{beat}
Leia: Well done, Jim.
Obi-Wan: You took three weeks to come up with this?
Leia: You should have seen the first draft.