For a fun change, how about actually drafting the PCs in a game into some sort of military or other service? They'll find rejecting a mission or adventure much more difficult when it's been given to them by Higher Authorities, on pain of treason.
Or for a variant, on one of the inevitable occasions when they end up getting a bit too drunk in a tavern, have them wake up in the hold of a ship, several miles out to sea. With no weapons or equipment, other than the buckets and scrubbing brushes, or possible oars, handed to them by the posse of burly sailors who enforce discipline. Fun for all!
GM: Meanwhile, at the Rebel fleet...
Admiral Ackbar: Let's launch this attack to ensnare the Empire. I hope Han knows what he's doing.
Lando: Nien, plot course for Endor.
Nien Nunb: I don't really want to be here, you know.
Lando: Then why are you here?
Nien Nunb: I got drafted.
R2-D2: How do you get drafted into a rebellion?
[SFX]: < boot-whiree bebedoip ping >
Nien Nunb: It was my girlfriend.
R2-D2: Your girlfriend?
[SFX]: < bleeping doip ping >
Nien Nunb: Yeah. Mon Mothma. <sigh>
R2-D2: Wow. How long have you two been together?
[SFX]: < nip ep whiree ping >
Nien Nunb: She came up to me in a bar on Coruscant and said, "We, like, totally need you in this Rebellion?" And now here I am, pressing buttons and pretending to know what I'm doing.
Lando: Still a better pilot than Han.