Listening to the persuasive presentations podcasts reminded me of a presentation I gave a few years ago.
I was consulting to the CFO and VP of planning at a global company, and the team was kicking off a high visibility / high cost / high risk project.
I was prepared, but didn't know the room until we got there: it was a tight fit around a table with a small screen and whiteboard. After intros and a brief, tense discussion about how tough the situation was, I stood up to give the presentation.
My feet got tangled in a bunch of wires, and I went to the floor, along with my laptop and the projector! After a moment of stunned silence, everyone had a good laugh and the tension broke. (They must have thought I was an idiot!)
The projector was irreparable. Fortunately, I had rehearsed and gave the presentation on the white board instead of in powerpoint.
The project was a success, they netted millions of dollars, but I still remember most that moment on the floor.