I once went to a showing of the touring company of The Lion King, knowing that I had tickets for me and my granddaughter , and that I had put them in a 'safe place.' And then couldn't find them. So I took her there anyway. Told the ticket booth people my sad tale. Of course she could find my name on any ticket holder -- because someone else had bought a whole group of tickets. Thought of my friend's name. Nope, not on their records. I finally remembered the name of the school. Someone at that school had bought a bunch of group tickets.
Naturally the ticket booth people didn't know which seat I had tickets for, but I was allowed to go in. So I stood in the aisle (in the balcony) in the general area our group was to sit and waited while all the rest of them filed in. Finally we figured out the two empty seats, which had to be ours. Yes, we very much enjoyed the show. (granddaughter was seven - and it turned out that the song her dance class performed at the dance recital was one of the Lion King songs. (That's MY song! she gleefully whispered)