In the assignment, I can add a rule to drop the lowest grade in the final grade calculation. However, I do not want to drop the lowest grade (say, a zero) assigned for academic dishonesty. I would like to add an exception to the rule for a particular assignment for a specific student. But I cannot do that. I can, however, add an exception to keep one assignment for all students, even if that is the lowest grade for anyone else, and not for academic dishonesty.