I was performing a trick with a normal deck, I had them select a card, and I controled it to the bottom using a overhand shuffle. Then the spec suddenly yelled "hey, my card's right there on the bottom!" What should I say or do in this situation?
"It is? Maybe you shouldn't have told me, now I know where it is." Then I would do some fancy false cuts (fancy for me anyway
) some riffle shuffles and hope for the best. But you definately need to learn some other controls and figure out what they spotted.