['Character building,' huh? Making others run your own errands is something people do sometimes, when they know they can't do it themselves... But when it's something they can do? Truly, Papyrus could just sense the resemblance to his brother. Does his insight know no bounds?]

If my friend's friend isn't a good person... then my friend is helping them be a better person! Anybody can be a good person if they try. And what would make them want to try, more than seeing what a good person I am? [Hastily added as an after-thought.] Or my friend is.