Quote from Dean in The Sleepover
Adult Dean: The fact that Coach Long was trusting me with a secret he couldn't tell Cory made me feel mature, special. It almost made me forget that I am terrible at keeping secrets. [flashback:] Kim: Why'd you buy paper plates? Dean: For your surprise birthday party. Bill: Thanks, Dean. [flashback:] Bill: I can't wait to see Planet of the Apes. Dean: Yeah, I heard it was good. They were on Earth all along. [off Bill's look] W-What? I said it was good.