Computer Prank Pack! April Fools!!

A bunch of different pranks you can pull on your family, co-workers, professors, room mates, or anyone!
The Pranks:

http://www.rjlpranks.com/pranks/avoid/

Lost Buttons
Go to Start--Settings--Control Panel
and find the option for your Mouse. On the
Buttons tab, change the buttons configuration
to switch the primary and secondary buttons of
the mouse. Now when the victim clicks with the
mouse, nothing will work as expected.

Edit Microsoft Word settings.
In addition to defaulting all text to "shimmer"
or "ants marching" (Format - Font - Text Effects),
you can customize the autocorrect options to mock
your hapless victim
(Tools - Autocorrect Options - check "Replace Text as
You Type" - insert desired words in "Replace" and "With" boxes.)

Search Confusion
Change the settings on your victim's computer
so when they Google something their search page
is in a different language. Just sneak onto their
computer, go to Google.com, choose "Settings" in
the upper right, then "Search settings." Now change
the Interface language to whatever language you
prefer.
(To fix after the prank just click on the
"Google.com in English" link below the search box
on the main Google page.)

Can't Close It
Open any application the victim might normally have open.
Press "PrtScn" to capture the desktop as an image
(make sure the mouse pointer and task bar can not be seen).
Next, open an image editing program, and paste the image.
Then save the images as a file. Next, right click on the
desktop, select "properties", and browse for the image
you just created. Select that image as your background
(make sure that it is stretched and not centered or tiled).
Your victim will think he has the application open on his
computer and won't understand why he can not close it or
minimize it.