Dobbsey and Brainley are in the lab. Brainley is slightly larger than normal.

Dobbsey: Hey Professor, I was wondering, did...

Brainley starts to float up and away.

Dobbsey: I, er...

He floats upside down and over Dobbsey, halfway offscreen at this point. Dobbsey stares up at him.

Dobbsey: Um.

Another Brainley walks in.

Brainley: Hey, did you see my balloon?

Sound FX (from offscreen, where the Brainley-balloon floated off to): POP!

Brainley: Nevermind.