Fail
はい
やぶ
None
A shellfish that can't live in winter is a failure. Any proper shellfish would survive through the winter, but there are always a few failures every year.
The best way to avoid failure is to say a little haiku (はい) to distract you from the cold. In fact, this can work in any situation where you're afraid of failure. Say a haiku aloud, it will calm your nerves and warm you from the inside.