I've got a terrible headache and I feel really sick today.
我头疼得厉害,今天觉得很恶心。
It is better to be safe than sorry.
事后追悔不如事前稳妥。
On the occasions when they have pushed to shore an unconscious human being they have much more likely done it out of curiosity or for sport, as in riding the bow waves of a ship.