But imagine you're a college student rushing to give an important class presentation when you see flashing lights in the rear view.
Luckily, this Wisconsin student didn't get a ticket - but he did get a lesson.
Dashcam video shows the officer teaching student Trevor Keeney how to tie the perfect tie knot.
Besides the knot lesson, the officer did give Trevor a written warning.
And Trevor also got a 92 on that presentation.