Donna: Kelso!
Kelso: Donna, let go of my leg! I swear I got no problem kicking a girl!
Donna: Look, you've done a lot of stupid crap over the years... You stole my panties. You tied my hamster to a bottle rocket. And I don't know how many times I caught you peeping through my window.
Kelso: Five.
Donna: Look, the point is, I let it all slide because underneath I knew you were a good guy. But if you bail on Brooke, I will never respect you again, and neither will anybody else.
Kelso: Look, I know, okay? I know. I just... I don't know what to do.
Donna: Well, Kelso, you need to go talk to her.
Kelso: Okay.
Donna: Good. [reads wall] What? "Touch Donna Pinciotti's panties for 5 bucks. Call Michael Kelso"? [shoves Kelso out the window]