Not only "Bush hid the facts"
Also Bush hit the facts, Bush bit the facts,
replace many three letter words with "hid".. It changes the font format
Similarly try "Bill fed the goats"...
It seems probable that a certain combination and/or frequency of letters in the character string cause Notepad to misinterpret the encoding of the file when it is re-opened. If the file is originally saved as "Unicode" rather than "ANSI" the text displays correctly. Older versions of Notepad such as those that came with Windows 95, 98 or ME do not include Unicode support so the error does not occur.
If you have time read the explanations
The first is that, after the ASCII-to-hex conversion of the string, Notepad rearranges the hex codes not according to ASCII standards, but to Unicode, and that messes it up. Here's the example:
Take "bush hid the facts". The hex codes (they can be seen with any hex editor you want to download) for the string are:
62 75 73 68 20 68 69 64 20 74 68 65 20 66 61 63 74 73
Arrange the codes to make up Unicode characters and you get:
7562 6873 6820 6964 7420 6568 6620 6163 7473
You'll notice that every code is hyperlinked