Zork
In the bird's nest is a large egg encrusted with precious jewels, apparently scavenged by a childless songbird. The egg is covered with fine gold inlay, and ornamented in lapis lazuli and mother-of-pearl. Unlike most eggs, this one is hinged and closed with a delicate looking clasp. The egg appears extremely fragile.
>open egg
You have neither the tools nor the expertise.
>eat egg
I don't think that the jewel-encrusted egg would agree with you.
>bite me
Auto-cannibalism is not the answer.