(fifth year Detention with Dolores, as it goes in Something Wrong verse, where Hari didn't get in trouble for the Voldemort thing because he was too pissed about Umbridge being racist and sneering at Pavarti and refusing to use his birth name when taking roll.)
"There," said Umbridge sweetly, "we're getting better at controlling our temper already, aren't we?"
Hari ground his teeth. He might have been getting a little spoiled by Severus' idea of consequences, which was something he doubted anybody would be able to relate to. His parent had never asked him to do anything more than make up for his mistake by fixing the problem though, unless he was doing lines as well, due to a two-way problem. This being treated like a toddler thing, where he was the only one who had done wrong, even though Hari was still entirely sure he was in the right, was well past infuriating, and he was already struggling not to break something.
"Now, you are going to be doing some lines for me, Mr. Potter. No, not with your quill. You're going to be using a rather special one of mine. Here you are."
He looked at the sharp, long quill with a great deal of wariness and resignation. Sure, it wasn't uncommon for other teachers to be picky about using a quill, but he'd gotten away with a pen for most of his worst lines sessions. He took the quill.
"I want you to write 'I must not tell lies'," she told him.
"Oh, as long as it takes for the message to sink in," she answered, her voice sickeningly, artificially sweet. "Off you go."
"You haven't given me any ink," he reminded, as soon as he set about to get started. Her reassurance that he wouldn't need any wasn't reassuring at all.
Hari set the point of the quill to the paper, then wrote. I must not tell lies. Then he gasped in pain and stared in horror at the back of his hand while the words, which had appeared there as if sliced into his skin, healed over. He looked back at the parchment, where what was fairly clearly his blood was still shining, then looked up at Umbridge.
She was watching him, grinning. "Yes?"
"No," he responded, making up his mind and standing up. It took all of three seconds for him to throw his bag back over his shoulder, shove the chair back out of his way, and open the office door, the parchment crumpling in his hand. This awful, terrible woman was not allowed to make him feel powerless.
"No?" She sounded as angry as he felt, as she scrambled for her wand. He didn't want to know what she was going to do with it. "Harry Potter! You do not get to just-"
"My name is Harith," he said one more time, just before kicking the door closed behind him and breaking into a run. He was almost to the dungeons when he realized his cheeks were wet with tears. Clearly, his anger hadn't been content to just roll around in his stomach. But it didn't matter.
He knocked on Severus' office door with a familiarity that was almost comforting in itself, taking a deep breath to try to slow the racing of his heart or the shaking of his hands or something.
But then the door was open and he was being invited in and pulled into a warm hug and asked what had happened and everything felt a little more manageable.
He sunk into the hug, hiding his face in Severus' shoulder for a moment to try to compose himself. "She-" he swallowed, then took another deep breath. "She had this quill. She was going to make me write lines in my own blood. I couldn't- I couldn't stay. Papa, all I did was ask that she use my actual name, and-" He hugged him tighter, clinging almost desperately.
“She was going to make you injure yourself. For detention,” Severus repeated, to clarify, holding onto Hari just a little bit tighter.
"Yes. I know walking out of detention is not good, but-" he cut himself off, biting his lip.
“Harith, look at me, please?” Severus’ tone was firm, the kind he had when there was something very important happening, but still gentle, and he made eye contact when Hari looked up, gently touching his cheek. “You were well within your rights to ask something so important from her. You did not deserve any sort of detention. But you certainly did not deserve to be hurt. What she did was very, very wrong. Do you understand?”
"It feels like I must have done something wrong. I know- I know I didn't- but everything feels awful and my stomach hurts and why should I have to feel bad when she's apparently perfectly okay with torturing children?" He broke the eye contact and handed Severus the parchment with the one smudged "I must not tell lies," then rubbed the back of his hand where it still itched a little, still leaning heavily against his papa.