Have you ever wanted the world to open up after giving a talk?

Public speaking is something I do not like, but I had to give various presentations at university since they did form part of my degree. I know some people love it and can easily do it, but I hated it so what are your horror stories about doing a speech or presentation?

For me it would be my last presentation at university where I had to give a talk about a certain project and review it whilst then coming to a conclusion as to whether or not you agreed with their theories. I spent almost 10 minutes doing what could only be described as a character assassination of the guy who was in charge of the project. I ripped into him with gusto and made a mockery of his conclusions and finished feeling really proud of myself.

That was until my lecturer took great delight in telling me that the guy I had just laughed at was actually the external examiner for my degree so he would be marking the written version of my talk and this was just as scathing about him!! In other words I did not die on stage with the talk, but I did die straight after it.

So what public speaking horror stories do you have?