Draco ended up correcting the students' essays. He assumed it was because of Harry walking in all of a sudden. Snape seemed a little rattled about it, and Draco noticed him glancing toward the door several times into the rest of the detention. Not that he cared; he was thankful it had happened, even if his worst enemy had seen him that way. Now Snape wasn't touching him... as much.
Snape had moved behind him a few times, as he sat and corrected the work, only to peer down at him, or rest a hand on his shoulder, or trace his fingers along his neck, or even push a strand or two of hair out of his eyes. Draco cringed every time, closing his eyes for however long the handling lasted.
And he didn't say one word.
In class the next day, Snape's irritation toward Harry barging in (to him it had been, at least) was obvious. Although Draco wasn't sure if Potter noticed it. He probably thought that Snape was having an extra bad day. Which, technically, he was.
Snape handed back all of the essays, and when Draco received his, it made his stomach churn. Perfect marks, like Snape had said. He knew that a few others had gotten the same as him, because he remembered reading some that were a lot better than his own when he'd been correcting.
But, a bit of a ways behind him, he heard an audible, frustrated sigh. He glanced back and saw that Potter was glaring down at his essay, which had something in thick red ink written across it. The glare soon moved up to watch Snape as he strode around the room. His emerald glare was deadly.
Draco raised his hand all of a sudden, feeling a bit nervous when the Professor spotted it the second his arm lifted. The man came over with his eyes locked keenly on him. "Yes, Mr. Malfoy?"
"I was wondering, Professor, why... does Potter have a bad grade?" Not that he cared, but he remembered giving the boy the second highest mark on his essay. It didn't seem like it had stayed that way.
"He didn't do the assignment correctly," Snape replied, looking somewhat startled that Draco would bother asking such a thing. "He once again didn't spend enough time on it."
"But it was goo--"
"No, it would've been Granger's doing if that happened, and he'd still deserve a bad grade."
"Maybe he was going to ask you for help last night!" Draco retorted, aggravated. He didn't know why he was defending Potter, but it felt better to argue with Snape. Knowing that he was getting the man angry seemed like a suitable enough cause to pay him back for what he had done to him last night.
"If you do not stop it, Mr. Malfoy, another detention will be in order," Snape threatened, his dark eyes flashing.
"I just want to know why you did that! You asked me to grade them, and you changed it anyway!" Draco was glaring at him, his fists clenched. That stubborn look of a child returned.
"I already informed you of the reason!"
"Well, you can go to bloody hell then! You said that you trusted that I knew what was correct or not!" As Draco said that, he stood up and hit his hand against the desk to signify his point.
"Sit down, Draco! That was your last warning! You'll be serving another detention tonight!" And with that, and with his expression now furious, Snape turned around and stormed back to the front of the room. Draco watched him go silently, slowly realizing that what he had done had been a bad idea. He was starting to develop the urge to scream. Scream and yell and kick at the Professor, but that would only make things worse. And this was all because of his bloody need to get revenge-- and it was Potter's fault because he was the one who had to sigh so damn loudly.
Draco turned to Harry, looking livid. "Thanks a lot, Potter."
Then he sat back down roughly at his desk and began to shove his essay into his book bag in a rather vicious manner. He didn't notice the look of confusion on Potter's face, or the curious glance he stole between both the Slytherin and the Professor.