Draco Malfoy, Head Boy, had just been enjoying his tea when a fifth-year girl came over. She was Daphne Greengrass's sister…Aster, maybe? No, Astoria.

She stopped in front of him and said, "A blonde walks into a store. She says, 'I want that TV in a corner.'

"The manager says, 'I'm sorry, but we don't serve to blondes.' So the blonde goes out, dyes her hair brown, and comes back.

"She says, 'I want that TV in the corner.'

"And the manager says, 'I'm sorry, but we don't serve to blondes.' So the blonde goes out, dyes her hair red, and comes back.

"She says, 'I want that TV in the corner.'

"The manager says, 'I'm sorry, we don't serve to blondes.' So she goes out, dyes her hair black, and returns.

"She says, 'I want that TV in the corner.'

"The manager says 'I'm sorry, we don't serve to blondes.'

"The blonde says, 'How do you know I'm a blonde? I've dyed my hair three times and you still know I'm a blonde!'

"The manager says, 'That's not a TV, it's a microwave.'" Astoria stood there expectantly.

Draco was confused. "What's a TV? And what's a microwave?"

Astoria turned around and stalked off to her friends.