It was raining. Ron was sitting at a window in Hogwarts, watching the rain fall onto the Quidditch field. He turned towards Harry and Hermione, who were at the other end of the room.

"Malfoy was pretty mad yesterday after we dumped that water on him," said Ron. "I think he's going to plot something even worse to get us back."

"No worries, Ron," said Harry casually. "The three of us can stand whatever he can dish out for us. Now come on over here and quit staring out that window."

Ron turned away from the rain and wandered over to where Harry was sitting, playing a game of Chess against Hermione. He tried watching, but it wasn't very interesting seeing Hermione thinking about a move for fifteen minutes at a time. He stood up again, and started wandering around the room looking for anything to do. Then he noticed a small drop of green goop on the floor. Ron bent down and poked at it...it was gooey, almost like jelly. He picked up a bit and smelled it...it didn't smell like anything. He was about to show Harry and Hermione what he had found, when another bit of it caught his eye. Then Ron noticed that there was a trail of the goo leading to the doorway. Curious, he walked over and opened the door the smallest bit, and walked out into the hall. He saw nothing, but a soft chuckling from behind him made him spin around. There stood Draco, holding a piece of rope.

"Look up," smirked Draco. Ron looked up just in time to see the piece of rope was attatched to a large barrel above the doorway. Draco quickly pulled, and the barrel tipped, spilling green goop all over Ron, who screamed. Covered in the goop, Ron backed up into Harry and Hermione, who had run into the doorway upon hearing the commotion.

"Oh, Ron! What happened to you?! I can barely see you under all that slime!" cried Harry.

"It's everywhere! You're getting it all over me- even in my hair!" said Hermione.

"How do you think I feel?" replied Ron, wiping globs of green slime from his eyes. "I feel like some sort of swamp monster. This is disgusting!"

Draco let go of the rope and began swaggering down the hallway. "You look like a swamp monster too, Weasley," he laughed. "I always get the last laugh. Remember that," he called back to them as he disappeared around the corner.

"We'll see about that!" Harry said.

"Ooooh, Malfoy's going to get it for this one," grumbled Hermione.

Ron was on the verge of tears. "I can barely move under all this slime. I'm practically buried in a mountain of it over here! Help me out?"

As the other two began to scoop green goop off Ron, they looked at each other knowingly, thinking the same thing- that Draco was going to get his just desserts, and that the slime was going to take forever to clean up.