"It might be in your best interest to apologize." Harry might as well asked him sport a dress and belt a showtune in front of the entire school.

"Merlin's sake why?!" Harry shrugs as he reaches for the cup of tea. "Because it'll make Hermione happy that's why." He finally answers having grown tired of the glare his former potions master was giving him.

"But I didn't do anything! I have better things to notice or care about than someone cutting two inches off their hair! Why should I apologize?!"

"Then don't. Eventually your back will adjust to the couch."