Keefer was strolling down the hallways when he turned a corner and saw several Hufflepuffs. There was some kind of commotion, but he wasn't sure why. All he knew was that several of his potential Quidditch players were there, and he didn't want any of them getting in trouble. He rushed over.

"Guys, what's all this yelling about?" Or screaming, really, on the part of Laura. "Whatever's going on, I'm sure we can settle it without raised voices. In fact, that's the best way to avoid fights." Because Laura looked TICKED. "I don't know what happened, but I think everyone would be better off just walking away for awhile and coming back to this discussion later. That will give everyone time to cool off and think about it rationally."

In other words, stop causing a problem or you'll get in trouble and lose Hufflepuff points. And don't invoke a woman's wrath, which would probably be worse.