My cousin used dish soap instead of cooking oil once. That was a mess, but nobody got hurt. Kitchen mistakes are mostly just annoying. We all mess up small things like that. Calling it a 'great mix-up' seems over the top. Just clean up and move on.
My brother grabbed the powdered sugar instead of flour for gravy last Thanksgiving. The trick was starting over with a clean pan right away. It saved the whole meal from tasting like dessert.