Re: destructive hdd check
""WARNING! ALL DATA ON THIS DRIVE WILL BE LOST. ARE YOU SURE YOU WISH TO PROCEED? YES/NO.""
You also change it so that you don't type "Y" to proceed, but the word "PROCEED" or "L" or something non-related to the command - so you're sure they definitely read the question.
Seem to remember the old partition manager on early windows builds required "L" as the confirmation key to delete a partition. DBAN needs a word typed.