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Don't need an app.

Command-Q her wallpaper. (make a wallpaper with Command-Q on it) :D
Then make her a non-admin so she can't change it until she learns. :p

Saves money on memory too.


had me on the floor laughing with this one. I may just do that for myself. lol :p
 
And now I find myself wondering why I've used Mac OS X since it was first released and constantly switch between it and Windows and I've never noticed this :confused:

:D but yeah, maybe you could talk to her? In any case Chundles suggestion should work (haha just kidding).
 
Tell her the story about the monster that comes and night and steals you hard disk if you dont close apps.

Actually, I think he eats it:

disk_monster.gif
 
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