Originally Posted by Aschere_Tonks

Aschere raised her hand.
"I was wondering if you could brief us on what the most common reason for losing house-points has been in the past, and in this term. Not to point fingers at anyone, of course," she added, because she knew how embarrassing it would be for anybody to be paraded as responsible for the loss of points.
"Rather," she continued, "as a guide to common mistakes we can all watch out for, to keep from losing points unnecessarily?"