[For Robert, they are often one and the same, especially considering their treatment on Terra; sometimes the oddness of Don's behaviour registers to him, other times it does not, but either way he is left with a vague sense of difference between their cultures.

... Then again, it's not one he's ever really been truly bothered by. This isn't the first time it's happened.]

... Ah, yes. ... Of course.

... Do you wish to take the food with you, or would you rather finish it before you leave?