I failed as a Secret Service Agent,

What we kept as a secret

There really is no such thing as a secret.

As a top secret that is

That song was written to be used... as a secret code of the Underground Railroad.

There's no such thing as a secret when it comes to affairs.

Son,you've to keep this as a secret form your family!

Enough heretical material was discovered in your house to have you condemned as a secret Calvinist.

But not as a Secret Service Agent. As a Warehouse Agent.

And I need you to keep it as a secret between you and me.