How did she do this?

Friday, I was at work and I get a call from Rusty.  We Facetime and talk and he said Alaina was messing with his laptop and rearranged the screen.  He didn't know how to fix it back.  So he showed me his screen.
Look at what she did!  Every icon was rotated counter clockwise.

So I hang up and google.  I guess it is a common occurence in Dell laptops because the solution was found easily.  CTRL + ALT + Right Arrow.  I guess she had randomly hit CTRL + ALT + Left Arrow to change it.