Christmas Lunch onboard a Cruiseship about 20years ago, we went as a family to celebrate my husbands retirement, and got caught up in the mother of all storms just off Gibralta, force 9 gale and very high seas. The food was lovely, but not many people managed to eat it, and many of those who did, regreted it as they dashed for the toilet suffering from sea sickness. The poor staff continued to work the best they could, handing out supplies of plastic bags and tissues to those waiting for the toilet. Luckily, I dont suffer in this way, having been sailing and skippering since my teens, neither do my youngest two daughters, but my DH just takes to his bed and stays there for the duration of the storm!