Many popular text editors are provided with shortcut for selecting all the text in a buffer. This shortcut is useful for authors who sometimes need to clear or copy the content of the whole buffer.
The shortcut provided in one of the text editors was the key combination Ctrl+A.
Sometimes, the users of this text editors activate this shortcut unintentionally. For example, suppose that I write a letter, and I sign it with my name Avi. To type the capital A, I typically use the Shift key, combined with the letter a. The shift key is close to the Ctrl key, and unintentionally, I might press the key Ctrl key instead of the Shift key. As a result, the whole document is being selected.
This could be a minor problem, and easy to fix. Unfortunately, the specific text editor provided another nice feature, that saves pressing the Del key when deleting text that is already selected. The feature is called "Typing replaces selection". Therefore, as I press the v after the Ctrl+A, the whole text is erased, and the final result is the almost empty document, with the last two letter vi, typed in after the buffer was cleared.
At this point the users are not prepared to having an empty document on screen. At first, they think that they lost the whole document on which they have been working for hours.
Experienced users may know how to work around the problem. They press another useful shortcut, Ctrl+Z, for undoing the last actions.
Many of the users may accuse the operating system for the unexpected behavior. Many of them may accuse a virus: unseen and harmful. Few, inexperienced users might respond hysterically, by saving the empty document, thereof, loosing their whole work.Few might feel so frustrated and humiliated that they give up using the text processor, or even the computer.
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