First off, my players are weird and like to throw curveballs at me. I like them, but sometimes it takes some work to incorporate them. We just finished up character creation and here's what we have:
My son is a Trandoshan Bounty Hunter (Gadgeteer) with the Betrayal obligation. He turned on his former clansmen when they were working together to enslave Wookiees for the Empire. Not really out of altruism, the Wookiee in question is player #2.
My wife is a Wookiee Smuggler (Gambler) with the Debt obligation. She comes from high Wookiee society, was your typical spoiled brat, and ended up deeply indebted to the Pyke Family (we'll be starting off with Shadows of a Black Sun). Seeing as you can't exactly squeeze a slave for cash, they paid Player 1's character to bring the Wookiee to them, rather than send her to the slave pits. Worked out pretty nicely for the Wookiee, except that she's now even deeper in debt, thanks to the favor.
Which brings us to my buddy. Interestingly, this is one of the first times he hasn't created a halfling murder-hobo. He was excited that he could play a droid, and while looking through the talent trees, loved Utility Belt. Thus was born an Astromech droid with the Outlaw Tech specialization, with an addiction to Hoarding. We decided he has a strong compulsion for buying knicknacks, because they just might be useful. We're tempted to name him Ron Popeilbot.
So, I feel like I've got a decent group here, with plenty to work with. But I really like having a story aspect when someone's Obligation is triggered. What do I do when I hit that "Addiction: Home Shopping Network?"