1. Forget about it.
2. Suddenly remember it, then overcompensate by making an unnecessary big deal about how “rare” and “unique” it is.
3. Ponder how many people are born on February 29, then become overly concerned about how they celebrate their birthdays during regular calendar years.
4. Not watch that oddly-released-in-2010 Amy Adams movie.
5. Forget about it.