That is very true Dave. I learn things from newbies all the time.
About the Fantasy Class locks, I think most of them have been changed out now to use your sail & sign card. Fantasy and Sensation both had the old locks the first time I cruised on them. But last time on Fantasy they had been switched out.
If you ever sail on those 2 ships notice they have a key slot to leave the old keys on the desk. Just some trivia.