There are such scanners - Lexmark. We have the scanning set up so that the client approaches the scanner and presses a certain combination of keys.
My girl shows me that the scanner doesn’t work.
Here, he says, look – I send, I press "grid1", and it doesn’t work!
I tell her that you are watching, and the computer asks you to press "grid2".
She says no, there has always been "grid1".
I tell her what is written on the screen - press "grid2".
She tells me - that no, there was always "grid1"!
I tick her finger into the monitor - this is the same "grid2"!
She says – where?
Closes the window, immediately opens - it is already written "grid1".
Press on the scanner – everything works... He looks at me with a victorious look.
Do you know what you did, woman?
You fought the computer.