Make Your Scared Passengers Comfortable:
First off, with guests that are not familiar on the water, and are Scared and/or Sea Sick I would have everyone put on there PFD's if they do not have one on, as a precaution. Then I would get the boat under control and underway with shortened (minimum) sail, on a heading that would take the boat away from the lee shore, and that would make for a more comfortable ride, to some sheltered water to check the engine. You may or may not be able to get to your engine safely if the seas are particularly rough, and it woul not help if you lose parts over the side or into the bilge.Also if the weather is particularly bad you can call your local Coast Guard Station and alert them to your problems. With the Lee shore, they MAY elect to send a boat to escort you to safety or to take you under tow to the nearest Safe Anchorage, so you can fix your engine in safety (so you can return home under your own power safely) or wait for a commercial tow, or maintain a line of communications until you are safe or conditions become worse. This is by far preferable to calling at the last minute looking for help to get you off the Lee Shore, just before you go on the rocks.You always have to remember, when you are in trouble on the water, it takes time for help find you and to reach you, because you may read your GPS Lat.-Lon. incorrectly (though this is the best way to give your location) or you may reference the wrong land mark from your chart. Here in Puget Sound (in a 50 mile radius of Seattle) there are many land mark, reference points that have the same name or sound the same so this leads to confusion. So please be careful when calling for help. When giving a land mark as a reference, you can also give the name of the island it is attached too, or a secondary landmark or the nearest town or processing plant, to expedite aid coming to you.