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Hilarious.
The genius of this program is that it takes the mick out of security, something that most people take seriously, maybe a little too seriously. If you can get it on a computer that an unsuspecting user will use later, their reaction will be entirely worth the effort. Even better if you can get it on a mates shiny new system!! Watch them squirm!!!
Pros: You can write custom warnings
Harmless fun
A break from run-of-the-mill utilities!
Cons: Might make people cry