Steven Hawking memory: My gramma had gotten tickets through one of her memberships to a speech by the Professor at Fermilab. She was initially going to take my uncle, but he backed out at last minute, and she asked me if I could go.
Of COURSE I said yes, wore a suit, got all fancy (for an early 20ish) and it was neat as he did physics (through his chair computer) in a way that both folks that had advanced studies and layfolk could understand.
At the end of the speech, some student decided to ask a really complex and technical question based on the premise of the first part of the speech (he had to have it packed into two modules for presentation, because the Computer at the time couldn't handle more than that)
There was a brief pause, most of us were expecting a simple 'no', or 'yes' or 'I can't answer'.
About five minutes passed as he typed out his response. "I'm truly sorry. That presentation was in the first half of the speech and to go into the math of it right now would involve reloading it and then dissecting the math. We don't have enough time for that but if you are at my next speech in the Twin Cities next week, I will have a detailed answer ready for you. Thank you for your patience."
Standing ovation and thunderous applause like a freaking rockstar.