Anecdote...

David Niven speaks of a conversation with Greta Garbo one day in a rainstorm:

"I often wondered if something of [vertigo] had overcome Garbo at the pinnacle of her career, so seeing her before me, carefree and happy, munching away contentedly with the rain cascading off the table, I decided it might be a propitious moment to try and find out.

" 'Why did you give up the movies?' I asked.

"She considered her answer so carefully that I wondered if she had decided to ignore my personal question. At last, almost to herself, she said, 'I had made enough faces.' "

From Bring on the Empty Horses by David Niven.