This is the first appearance of the Dinkley 2000.
(Scooby finds the locker with everyone's missing stuff in it)
Freddie: Good going Scooby, now all we have to do is find the culprit!
Velma: But Freddie, this is MY locker.
Freddie: Aha! I knew it was you, after all those when you were pretending to be our friend!
Daphne: Please get rid of Red Herring.
Jenkins: Yes Ms. Blake!
Red Herring: This is really not very funny.
Scooby refuses to go into the janitor's closet for a Scooby Snack because it's too "spooky," but he does it when Velma kisses him and asks him to do it for her. ("I'd do anything for you, Velma!" he says.)
Pun: "The Evil Walks Among Us"