A few days ago, a newly qualified doctor asked informally if he could submit a 'slightly modified' version of a paper he'd just submitted to my journal to the BMJ. I told him about the evils of multiple submission and warned him that some journal Editors, if they discover the subterfuge, may well ban the author from submitting to their journal for a number of years. This, indeed, was the punishment that an Editor-in-Chief — not amused by a recent case of multiple submission to his journal — suggested at a recent COPE forum.