You might consider the Roll Call for the cruise on which you are sailing.
But, I will look for the ducks on the Princess ship that I'm sailing in hopes to find one of your ducks.
Want another cruise line? Cruise Critic conveniently list at least 40 other choices. We are not gamblers, but somehow we are on the Princess Casino Deals list, just got an offer for $75 per person on a 16 day Hawaiian round trip. Along with many others... Look around.
If town is close, go to town and have a meal of your choice, hit a bar or two, do some shopping, hit a bar or two, get back to the ship while you still can.
Not quite the way it worked. At a point in time Royal “gave” an adjustment to Celebrity cruisers. -or at least this is what happened to us. When the 2011 points conversion happened on Royal, we had five credited cruise credits with only one actual cruise. Thus four credit adjustment.
The average cruise passenger doesn’t even know that there is a library on the ship. If you want more safety send the teen to the R Bar. No one at it while the ship in port, except for staff. (No this is not a joke)