Lisa: Mr. Bergstrom! Hey, Mr. Bergstrom!
Mr. Bergstrom: Hey, Lisa!
Lisa: “Hey, Lisa” Indeed!
Mr. Bergstrom: What? What is it?
Lisa: Oh, I mean, were you just gonna leave? Just like that?
Mr. Bergstrom: Aww, I’m sorry Lisa; y’know, it’s the life of the substitute teacher; He’s a fraud. Today he might be wearing gym shorts, tomorrow he’s speaking French, or, or, pretending to know how to run a band saw, or god knows what. 
Lisa: You can’t go. You’re the best teacher I’ll ever have.
Mr. Bergstrom: Aww, that’s not true, other teachers will come along-
Lisa: Oh, please!!
Mr. Bergstrom: No, I can’t lie to you, I am the best. But, y’know they need me over in the projects of capitol city.
Lisa: But, I need you, too.
Mr. Bergstrom: That’s the problem with being middle-class. Anybody who really cares will abandon you for those who need it more.
Lisa: I-I understand. Mr. Bergstrom, I’m gonna miss you. 
Mr. Bergstrom: I’ll tell you what, whenever you feel like you’re alone, and there’s nobody you can rely on, this is all you need to know.
Lisa: Thank you, Mr. Bergstrom. So, I guess this is it, if you don’t mind, I’ll just run along-side the train as it speeds you from my life.
Mr Bergstrom (as train speeds away): Goodbye, Lisa honey; it’ll be OK, just read the note.