Safety Curtain

A.has taken me to ROH to see Puccini's La Rondine with Angela Gheorghiu in the role of Magda. None of us is a fan of Puccini ( A. is certainly more qualified ) and this performance will not change it. It was first time for me to hear AG singing and if nothing else she was worth the ticket.
( why was this woman taking a photo of safety curtain its mystery to me )