Card under specs bum can get a good laugh. Looking sheepish, tell them you can't find it. They must have taken it out. Offer them the pack to look through to see if its still there. When they cant find it they usualy ask where you have stashed it, "you're probably sat on it" say they, "no, but you might be" say I.
N.B. UNDER, not up. You'd need a gimmick to do that smoothly and unnoticed


