According to what CampSec figured out right after it happened, the culprit (DormCrotch #4?, aka FOH) was a guy visiting a friend in North. The Northie friend acknowledged that he'll take responsibility for the payment--out of the presence of CampSec, he said, "I'll take it out of his ass later". Even though he was kidding, I don't want to be the guy who drove the cart through our window.