I agree that it was classless and crude, there is a lot in our world today that is just that. Now, in term of enforcement, what would you have them do? Where is that line drawn on t-shirts and who decides where that line SHOULD be. Carnival is the FUN ships, it does make it a little harder than say HAL or Silver Seas. Tasering anybody with an offensive shirt or a political one? Who decides where it begins or where it stops. Easy in the abstract and harder in reality, no matter what the line.