"I need a berth. Cohen and the rest of you seem like good folks, and this crew appears to have room for more... unusual people. You certainly beat the other possible employers around here, who are mostly homicidal thugs who like to wear red. I'd rather not have to rob and murder to earn my keep...
If that's not a good enough reason, what would you like me to do? Find a canoe and paddle back to Greyhawk?"