Sergio in “Unfinished Business”

[spots the Loud pets sleeping in the sofa through the living room window after failing to open it; knocks to get their attention] Psst! Open up and let me in! [smiles while giving them a thumbs-up; the pets wake up, see him, and yawn before Walt turns off the lights and go back to sleep; gasps] Is this about the party not being at the big fountain downtown? It was a joke! Can't you take a joke? [the pets blow raspberries at him in jealousy and resume sleeping; now annoyed] Fine. Don't need you guys anyway. I'll find my own way in. You'll see! Sergio is unstoppable! [goes to the backyard and tries to ram his way through the doggy door, but it turns out to be sealed on the other side with wooden planks] I'm gonna have to use my brain and not my brawn. [flies up to the window of Lori and Leni's bedroom and knocks to get Leni's attention] Leni, you're dreaming. I'm Dream Sergio. Open the window. [Leni shrugs, gets out of bed, but walks to the closet instead and opens it, and collapses on the floor resuming to sleep; gets an idea and goes on top of the roof] Down the chimney like old St. Nick. [dives into the chimney and struggles to squeeze his body in, then crashes from the fireplace and into the living room, covered in soot; to the Loud pets as they glare at him in irritation] Ah! Told you I was unstoppable! [spins to get the soot off him and coughs; the Loud pets storm off into the kitchen, all fed up with his selfishness; groans] I get it. You're still mad about the party. [follows them as Cliff removes the planks from the blocked doggy door, for when they've been deceived] Let's talk about it like grown animals. [the pets exit through the doggy door, still ignoring him and not wanting to be bothered by the likes of him; groans again; grumpily] Real mature, guys!