A tourist is picked up by a cabbie in Chicago on a dark night. He taps the driver on the shoulder to ask him something.
The driver screams, loses control of the car, nearly hits a bus, drives up on the sidewalk, and stops inches from a shop window.
For a second everything went quiet in the cab, then the driver said, "Look friend, don't EVER do that again. You scared the daylights out of me!"
The passenger apologizes and says he didn't realize that a "little tap" could scare him so much.The driver, after gathering himself together replied, "Sorry, it's not really your fault.
Today is my first day as a cab driver - I've been driving hearses for the last 25 years!
One of our favourite customers came in with an unusual problem. He had tried to cut a 12" circle out of a sheet of glass 12" x 12". The four sides of the circle that came right to the edge of the glass were irregular. To salvage the bumpy circular sheet of glass, we set up a Silberschnitt Circle Cutter in the middle and dialed the cutter head down to score a 10" circle. After scoring the circle, we first tried the flip it over and press trick, a la Patty Gray. That didn't work as there wasn't enough glass to flex on either side of the scored line.
We tried using the Morton M-80 Power Breaker, and carefully used it to run the inner scored line in a complete circle. Then we followed Patty's standard procedure, and made 4 relief scores out from the inner scored line to the edge of the glass, flipped it again, and applied pressure to break the excess glass off. It worked beautifully. If you don't have a M-80, you should be able to use the Morton Safety Break System, with the little Red Button on a Morton Board, and the narrow end of the Small Red Handle to run the circle in the same way.
The moral of the story is that you need a sheet of glass that is at least an inch bigger than the circle you want to cut, but if you do make a mistake, you can at least salvage a slightly smaller circle from it.