Worst practices in Django you have ever seen
My worst mistake was using absolute imports like <project_name>.<app_name>.models rather than <app_name>.models. This way when I made a branch and wanted to check it out in different directory (like having  and -stable of my project), it wouldn't run. I managed to revert in one project and use only relative imports in one project, but in another, larger one, we have to stick with it (we have there both absolute and relative). I won't make this mistake again.
What are the worst mistakes made using Django framework, that you have noticed? Have you seen some real misuses, that maybe should go as warnings to the Django docs?