Loved the Heist themed show, however I think there were bad controls in place for the glass breaking experiment. IN the show they demonstrated making a diamond cut on the glass in a smaller circle then placing a larger suction cup on the glass and then attempting to pull it off.This is what caused this experiment to be busted.
The mistake from the accuracy of the movies occured with the size of the suction cup relative to the size of the cut. To make this more accurate and make it work they will need to: 1) first secure the suction cup to the glass. 2) Then have a cutting device attached to the suction cup that can cut in a circular fashion. 3) They need to rotate the cutting diamond tip until the tip pierces the other side. (They are able to safely cut to the other side because the suction creates enough support) 4) Once the edge is completely cut then they would need pull on the suction cup and there you go.