I'm crossing over from Melbourne Uni to tell a story:
I was doing a science subject, focused on natural disasters which involved a group oral presentation discussing how to prepare for and manage a particular natural disaster.
I procrastinated writing my section of the speech and prepared it mostly in the room, while others were doing their speeches. It was only about a minute long, so I felt confident I could memorise it and do it easily without cue cards...
When I finally got up the front to say my piece, I made accidental eye contact with a mate, then briefly struggled to not laugh. Unfortunately, I completely lost my head in that moment, struggled to remember the sequence of topics and awkwardly stumbled through the rest of my speech - thanks to me, our group got the worst mark out of everyone in the class and I made a huge dumbass of myself.