I never "hide" my iron and no one has ever tried or even said anything to me. I always take it in the carry on. I have cruised 3 times on RCL and 1 time on Celebrity. Maybe I just got lucky but I will continue to try. The room steward sees it also every day in the cabin. I am very careful to unplug it but it does have to cool down before I put it in the closet until the next day.