Also hate inducing:  Playing with a couple who always make it obvious to one another which card was theirs, and then always pick each others no matter what it says.

There are lots of different chemicals available as "modern equivalents".  Some of the techniques that have been referred to as "molecular gastronomy" by some of the contestants are in common use for more subtle purposes like thickening sauces.  Gums, seaweed extracts, pectin, starch, gelatin, etc.  They're quick,…