[Sebastian just nods to the first part - he could stand here and explain that some children hire demons to enact gruseome revenge and are really quite terrible people (not that he knows anyone like that), but that would take all day, so he settles for just nodding.]
Please think nothing of it. They say that all of us being in the same situation, we should assist one another when able. ["They" being the inmates who are better people than Sebastian.]