My wife is a real engineer. A chemist for education and workplace, repaired today the calculator by the method "tika".
The subordinates drew her an old machine with a defect: the display incorrectly displays the numbers and asks to write out a new computing device from the warehouse.
There are no calculators in the warehouse. The wife, tapping the button, entered a random 12-bit number, after which the display flashed, and the numbers began to display correctly. In shock of her own talent, she called me.
proud of my wife.