Wait. What? He couldn't let the Potter kid show him up! So Sirius looked up, shaking his head. "I started it! I told him he looked like an owl. And that he was the best student in his class and an idiot." Sirius was on a real truth spillage now, so he gestured over to the half-blood kid from before. "And I told him that he smells great and has a good face."

There, that was his list of sins. Wait. "I was hoping he'd try and punch me, professor, cause then I'd have totally won. I'll take my punishment. I can totally take more than him."

He said it with such innocent conviction, really not dissimilar to James at all. Minerva McGonagall looked down at these boys, so eager to confess, both with pie on their faces and hands and really looking so excited. She couldn't be that harsh to them. "That sounds idiotic of both of you." That much was true. "Shake hands and apologise properly. To everyone else and the headmaster too. And I hope you learn from this."

Sirius had learned that food fights were fun.