Corrected entry: In Dean Wormer's office, a man uses a measuring tape to compare the dimensions of the door opening and the dead horse. Then you hear a chainsaw, implying the horse was too large for the door. It might have been too heavy to carry in one piece, but by his measurements it would have easily fit through the door.
brantlee
23rd May 2003
Correction: That is the joke - he measured the horse's length, which if you carried it the length across the door opening it would not fit. Even by looking at the horse, you can tell it would fit through the door if moved the right way.