Good thinking IAIN.
My funny coincidence was, I was doing magic at the launch of the last Harry Potter book in a local book store which was packed out onto the streets.
They requested that I only do a half hour in the lead up to midnight... Being the clever guy I was I didn't bring enough material suitable for the view the crowd had, so I just said... "I want everyone to get a random card in their head and think of it without saying it"... and this kid high up on a stairs locked eyes with me and I just said "Your card is black, its a number card.... 6 of clubs?".... He screamed.
Of course I had no idea what his card was, I was trying to fill time and was expecting to be wrong, and if I was wrong I was going to say the classic line "now someday that'll work and you'll all spend the rest of your lives wondering how" as a type of gag. I didn't have to as it turned out, and I amazed myself more than anyone else that night I think.
Sometimes it seems that we, instead of our audiences, get to experience real magic and gain the real entertainment of our performances
