When I was a student, I did an internship in a chemistry lab. On one of the days, someone brought in some samples of skunk secretion for an analysis.
Everyone was like Not again i dont want that, let the intern do this!
I thought how bad could it be?. Turns out really bad. It days to stop that smell. And I mostly handled the sealed phials and only opened a single one for a gas chromatography without spilling something…