A ship sinks. Three people, a husband and wife, and the ship's cook, escape the sinking ship and make it to an island. The three quickly agree they must make watch and have ready a signal fire. So they quickly determine the best plan is to take turns up a coconut tree to watch for a rescue ship. Whereby, upon sighting they'll then light the signal fire. The cook insists on taking first watch. He climbs the tree. He spends all day and night. A double shift. The next morning he comes down the husband takes the next watch. The cook sleeps. Come night the wife takes the next watch. The next morning the cook takes his watch. Again proceeds to watch all day. At the end of this day, as he rolls into his second watch, the cook starts yelling down at the husband and wife to stop having sex. He insists it is entirely unfair that he is alone, up the tree, and has no one with which he can have sex. The cook continues to yell and demand they immediately stop having sex. The husband and wife, completely confused simply look at each other and wonder what the cook is talking about. The cook continues the watch through the night. Periodically the cook, becoming more and more angry, begins yelling at the couple demanding they stop having sex. Screaming how unfair it is that they enjoy themselves while he takes double shifts up the tree for the benefit of everyone. The couple discuss the situation and agree the double shift up the tree and heat is clearly getting to the cook. The wife argues the husband should take a double watch to allow the cook time to recover. To which the husband agrees. The next morning the husband takes his shift up the tree. At the end of the first shift, as the light is dimming, the husband looks down and begins to think to himself. He believes he finally understands the cook. The husband says to himself, "how strange, from here, with the dimming light, it really does look like they are having sex down there."