Note that when he spills the soda on the piece of rug, it pours into the rug, over the rug, onto the counter. Then he mops it up with the Shammy and empties the shammy into the bowl. Then he goes back to the rug (here is the switch - new rug - less soda in it, no mess on the table at this point), presses down on the rug with the shammy and its a miracle! Not only is the soda cleaned up but its like no soda was ever poured! And the bottom of the rug is perfectly dry and completely free of any evidence there ever was soda. That is purposeful deception right there. They definitely switch rugs - check it out next time.