I went to a concert where Ivo Pogorelich used the score for everything.
Would you believe, the page turner messed up once. [like, fell asleep on the job]. He had a cold - and was caughing [don't know how he fit it in, but he did, LOL], and one time he caughed, and then waved his hand like "turn the page!" I thought that was a pretty bad flub.
it was kind of an odd concert [recital] ...