So far the most unrealistic thing I’ve come across happened in Mendoza (spoilers):
Shortly after watching Don Yates be shoved off the balcony by his wife, I made my way down to the vineyard and watched as the Chief Winemaker received a phone call from Yates, demanding that he provide a tour to the guests of honor.
Everybody knows that senior partners don’t make calls like that, they make their assistants do it.