jack: its a drwaing of a key...gentlemen what do keys do?

pirate: they unlock thing..?

gibbs: and whatever this key unlocks, inside there is something valuable. so we are setting out to find what this key unlocks.

jack:...no. if we dont have the key, we cant open whatever we dont have that it unlocks. so what purpose would be served in finding whatever need be unlocked, which we dont have, without first finding the key what unlocks it?

gibbs:....so we're going after this key.

jack: you're not making anysense at all
- pirates of the carribean 2