Young man gets hired as a secret agent...

Young man gets hired as a secret agent...

He's told to deliver a top secret package to a guy named Goldberg, and given his address. He's told to use the passphrase "The night-bird sleeps at dawn" to identify himself.

So, he takes a plane, to a train, and then a cab, and finally arrives at the guy's apartment building. He goes up one flight and knocks on the door. Guy answers.

"Are you Mr. Goldberg?"

"Yeah".

"The night-bird sleeps at dawn."

"Ohhhhh you want the other Goldberg. He lives upstairs in 3B".