Type "this app can break" or "bush hid the facts" [without quotes] in a notepad window and save it with any name. Close the notepad window, refresh and reopen it.
You'll be amused to see the text written...

Reason -
It happens because Microsoft Windows XP's Notepad will not accept coding in the following format

that is :
this(4),app(3),can(3),break(5)

you can also try with another characters also but the format must be maintained : 4,3,3,5