I appreciate you coming down here, Mrs. Parr. What is this about? Has Dash done something...

Principal: I appreciate you coming down here, Mrs. Parr. [Mrs. Parr looks at Dash] Helen: What is this about? Has Dash done something wrong? Bernie Kropp: He's a disruptive influence and he openly mocks me in front of the class. Dash: He says. Bernie Kropp: [to Dash] Look, I know it's you! [to Helen] Bernie Kropp: He puts thumbtacks on my stool. Helen: You saw him do this? Bernie Kropp: Well, not real... No, actually not. Helen: Oh. Then, how do you know it was him? Bernie Kropp: I hid a camera. [has the videotape, Dash gasps and looks at Helen, glaring at him] Bernie Kropp: And this time I got him. [Plays the videotape of Bernie goes back into the chair. Dash puts a tack on his chair while he's sitting down. Bernie screams and students laugh] Bernie Kropp: See? You see? [Helen, Dash and Principal squinting their eyes] Bernie Kropp: What, you don't see it? [groans, reversing the tape] Bernie Kropp: He moves! Right there! Wait, wait... Right there! Right as I'm sitting down! I don't know, I don't know how he does it. But, there's no tack on my stool before he moves and after he moves, there's a tack! Coincidence? I think not! Principal: Uh... Bernie? Bernie Kropp: Don't "Bernie" me! This little brat is guilty! Principal: You and your son can go now, Mrs. Parr. [Helen and Dash leaving the Principal's Office, Bernie shocked] Bernie Kropp: You're letting him go again? He's guilty! You can see it in his smug little face. Guilty, I say! Guilty! Guilty! No!