A long time ago at a university not far away, I and a few classmates all turned in the same report for a group project. The teacher absolutely and rightly thought we were cheating, after which we explained that we interpreted the instructions to mean that a group project would have a group paper. He seemed to accept this and gave us like an extra week to compile our own papers, but he must have smoked an extra bowl that night. I know I would have if I was a professor in that situation!