A while ago (June 5, to be exact), NPR's All Things Considered had a piece on punishing kids in school by making them learn Robert Frost. It was intended partly as a way to make the kids learn more. They included several responses to the policy. One response caught my interest. It said that such a policy ends up agreeing with all the high school dropouts that education is bad. After all, it can't be a punishment unless it's bad. The problem with this punishment is that education isn't punishment.
This is a common enough view, and it has interesting implications for theories of punishment. In particular, it seems to undermine restorative, rehabilitative models of punishment. It doesn't undermine the view that we should seek to restore and rehabilitate criminals. It does undermine the view that we should call it punishment when we do so. It seems to me that the main assumption lying behind this slogan is that education isn't punishment, because education isn't retribution.
Given some of the stuff Wink is working on, I thought this was an interesting presentation of a popular intuition about punishment that runs counter to how he's trying to think about punishment.