Quote from Kramer in The Voice
Kramer: Darin? What are you doing here? The college canceled the internship. Darin: I don't care about the internship. I care about Kramerica. Kramer: Kramerica is no more. Darin: What about the oil tanker bladder system? We were going to put an end to maritime oil spills. Kramer: Probably. Darin, you go home. Forget about Kramerica. [closes door; instantaneously opens it again] Well, you're still here? Darin: I haven't had time to leave. Kramer: Well, I haven't changed my mind. [closes and opens door again] Well, you are a tenacious little monkey. All right, I'll do it. Kramerica Industries lives! Let's get back to work! [closes door with Darin inside; opens it again] Let's see what Jerry has to eat.