First thing, read the part in Book 1, Page 199 (American version), line 13... What might have really happened? Here's my take on what could have been said...

"Hey, Harry?" Ron suddenly said.

"Yeah?"

"What if Malfoy were expelled?"

"That'll be the day," Harry replied.

"No, seriously," Ron said quickly. "What if we got him expelled?"

Harry suddenly caught on to what Ron was saying. "Oh, you mean…"

"Yeah," Ron grinned. "What could we do?"

"Hmm… I've got it!" Harry's eyes brightened. "What if we wrote a nasty note to Professor McGonagall and put it in his Transfiguration books when he wasn't looking? That way, when McGonagall checks his work and sees it, she'll expel him!"

Ron laughed. "Yeah! Or maybe we could sneak up behind him during Potions and hex Snape so it'll look like he did it!"

Harry tilted his head and said, "That might not work. You know Snape favors Malfoy. He wouldn't expel him for that."

"True," Ron agreed.

They thought a moment before Harry said, "What if we locked ourselves in a closet and when someone let us out, we tell them it was Malfoy?"

They thought a moment as the scene ran through their minds: They locked themselves in and no one ever found them. When someone finally did open the closet a hundred years later, all they found was two musty skeletons.

Harry and Ron shuddered at the mental image. "Never mind," Harry said grimly, and they both laughed. "Well then, we could do something after classes, right outside McGonagall's classroom, something that would make him so mad he starts throwing spells at us. Something like… like…"

"Like steal his wand!" Ron suggested.

"Then he wouldn't be able to cast spells," Harry pointed out.

"Oh, well then we could yell out something to the rest of the school." Ron laughed. "Like 'Malfoy wears pink underwear!'"

Harry laughed and rolled his eyes. "Or how about 'Malfoy sleeps with a fluffy bunny and can't live without it!'" Ron stared at Harry a moment before bursting into laughter, Harry joining him a moment later. When they got their breath back, Harry glanced out the window and said, with not a hint of laughter in his voice, "Or we could do something to make him look like he's trying to open the door to the third floor."

"Ha!" Ron was ecstatic. "Like switch the sign for the third floor and the boys' restroom!"

Harry grinned. At that moment the portrait hole swung open and a shadowed figure appeared in the entranceway. As they stepped into the light, Harry and Ron instantly recognised the light blonde hair.

Draco Malfoy.

"I heard every word you two have been saying," Malfoy drawled. "And I did not like any of it."

And he raised his wand at Harry malicious grin just as Professor McGonagall entered the room. "Malfoy! What are you doing? I should have you expelled!"

Harry and Ron grinned at each other.

A/N So I didn't have time to really go over it, so there might be mistakes. Hope you liked it anyway! And I just changed it, most of you didn't think the other ending was very valid so... Haha