I do events, one of the events was a medical conference. We had an exec for a pharmaceutical company presenting and he wanted the entire stage layout changed 45 minutes before the presentation. Like completely different projectors, screens, mics, that sort of thing. Not a quick fix by any means. We told him it wasn’t possible, his response,

“Anything is possible if money and physics allow it, and I have money.”

Their pharmaceutical company wasn’t invited back to the next years event. We were.