"Likely because she thinks it'll bring honor and glory to the family. Or something like that."
Regulus smiles a little. "Thank you. I'd really rather not embarrass myself in front of the entire school."
He has a reputation to uphold, after all. Said reputation does not in any way, shape or form include being the laughingstock of the quidditch season. (Even if it would almost guarantee one Gryffindor Beater couldn't bring himself to aim at him.)
"I don't suppose we could find something to eat before Mother and Kreacher get back?"