SpongeBob: [thinking] I got to be more quiet. I don't want to wake Patrick up. [slides down the wall from the portrait and makes a loud noise upon touching the floor. Patrick stretches and then goes back to sleep. SpongeBob then lifts his leg and then Patrick makes another noise. He then tosses himself over on the bed. SpongeBob puts his leg down, which makes a loud noise]
Patrick: Duh... who's there? [mumbles then goes back to sleep.]
SpongeBob: [talking to his foot] Shhh! [steps on a potato chip and makes a broken glass sound]
Patrick: Eh?! [gibberish] Who's that?! [Patrick is back asleep. SpongeBob sweeps his sweat drops off him and they land, causing a loud splash sound.] Mmm... water. [licks his mouth dry, then tosses himself on the bed. SpongeBob takes another step and makes an "AWOOOOGA!" noise. He then steps again, making a loud machine gun noise. Steps again, making the sound of an elephant. He then stretches his leg near the side of the bed, then takes the step, making a very loud crashing noise. He then peeks above Patrick to see the box. He gets ready to reach for the box, but Patrick takes the box before SpongeBob could grab it. He then slides onto Patrick, grabbing the box] Good old secret box. Let's see what's inside. [opens SpongeBob's mouth and pulls out his tongue, then laughs and lets go of his tongue] Nighty-night, boxie. [puts SpongeBob on the side of the bed. SpongeBob gets off the bed and then trips on a shoestring, causing him to bounce around Patrick's house, making a lot of loud noises until his head hits the wall, causing the portrait to fall off the wall, hitting him in the head, breaking the portrait half. The box then lands on SpongeBob and makes a loud noise. The scene cuts back to Patrick, who, despite all the noise, continues to sleep]
SpongeBob: Gee, Patrick sure is a heavy sleeper. [Patrick wakes up]
Patrick: Huh? Who said that?! Who's there?!
SpongeBob: Uh…
Patrick: It's the Clam Burglar! And he's stealing my secret box! [runs up to SpongeBob] Hand over the goods, Secret Box Bandit, and prepare for the most unpleasant pillow fight of your life! [readies his pillow like a shotgun, ready to suffocate him]
SpongeBob: Wait, wait, wait, Patrick! Stop! [takes off his mask] It's me, SpongeBob!
Patrick: [stares at him while clueless] Nice try, burglar, but SpongeBob's my best friend, and he'd never steal from me.
SpongeBob: No, really, Patrick! Look! [Patrick gasps. SpongeBob reveals the Best Friends Forever Ring.]