No I haven't. Aircrew rations were a great example of a total luxury.
Then I guess you haven't ever done a busy SAR shift when you are retasked from one job straight onto the next or just get a cup of tea down your neck and start the paperwork when the job phone rings again - that is where a drawer full of choccy and other goodies comes into it's own - not exactly a total luxury when the first job was before you had a chance to get breakfast and you are still going at 7 in the evening.
As Vie pointed out - it adds a lot to your credibility if you have a vague clue what you are talking about - now you can do a downwind deck downwind if you like but there is probably an easier option, it can depend on how fast the boat is moving
