The most common form of police corruption, gifts or favors given to police officers, sometimes out of a sincere effort to thank the officers but often out of self-interest with an expectation of better police service.
It is customary to tip your crew at the end of the cruise, much in the same fashion as you might a driver, waiter, or maitre 'd. Usually the tip is from 10 to 20% of the price of the cruise. Your crew is your guide, skipper, windsurfing or water- skiing instructor, chef, waiter, bartender, wine steward, maid, poker partner, even perhaps your snorkel or dive buddy and maybe even your challenger to a kayak race.