Dragline: [After Luke wins a poker game by bluffing] Nothin'. A handful of nothin'. You stupid mullet head. He beat you with nothin'. Just like today when he kept comin' back at me - with nothin'. Luke: Yeah, well, sometimes nothin' can be a real cool hand.
"Captain, Road Prison 36: You run one time, you got yourself a set of chains. You run twice you got yourself two sets. You ain't gonna need no third set, 'cause you gonna get your mind right.
"Boss: Sorry, Luke. I'm just doing my job. You gotta appreciate that.
Luke: Nah - calling it your job don't make it right, Boss.
I agree with this quote. If it was your job to kill someone, it would not be right. If someone told you that they wanted you to sabotage a company for a lot of money, you might agree to it as your job, but its still not right. In this scene, Luke is being put in the box because his mother died. The reason they put him in the box was, they wanted to keep him from getting "rabbit in his blood" and run away to his mothers funeral. Even though its his job, he should have some type of sympathy for Luke.
