Astoria walks up to Draco the day after the Card Incident. She was holding a butterbeer bottle.

"What do blondes and this butterbeer bottle have in common?" she asked.

"How would I know?" Draco asks.

"They're both empty from the neck up!" Astoria says, laughing.

Draco gives her a look. "I don't get it."

Astoria stops laughing. "The butterbeer bottleneck isn't filled with butterbeer," she explains. "The blonde's head isn't filled with brains."

"Blondes have brains."

"Really?"

"Without brains, you could not live. You need a brain to live and breathe and blondes are living. Therefore, there is no possible way that a blonde's head can be empty from the neck up."

"It's a joke, Draco, it's not meant to be taken literally." Astoria turns on her heel and leaves.