As those of you who take cruises know, many cruise lines add a fixed amount gratuity to your cruise bill. (Usually in the $15-$20 a day range.) On most lines that do, you can adjust that amount up or down, if you choose. Lately there has been a trend among some cruisers to remove those gratuities and tip cash to specific employees. On a recent Princess Cruise I considered doing that but learned that the Princess line requires their employees to submit cash tips received to the cruise line for pooling, along with other gratuities collected. I was not mystery shopping on this cruise, but it did make me wonder: Is Princess shopped? If so, do they have you give cash tips to an employee to see if they are pooled? How about other cruise lines? Is there any part of the mystery shop that involves the handling of tips? Just curious if this is addressed in cruise shops.