A couple of math majors at Reed College near Portland, Oregon were having a little fun on a snow day when they lost control of a massive snowball that rolled into a dorm, knocking in part of a bedroom wall.

No one was hurt and the students have apologized. The will not be disciplined by the college. Spokesman Kevin Myers says the snowball was estimated to weigh 800 pounds or more. Damage estimates top several thousand dollars to make the repairs.