Certified Idiots

I saw another odd sign today as I was walking to work. On the side of a truck it read: Certified Document Destruction. Now, it's not as good as Real Egg Substitute but it still got me thinking. What exactly do you have to do to get certified so you can destroy documents? Do you go to school for it? Do you get a license if you pass said course? Someone told me that it means you get a certified document that tells you all your documents are destroyed. That doesn't make sense either. "Sir, here is a certified document saying we destroy all of your Guantanamo Bay torture documents. It list everything we got rid of. No need to thank us." Wouldn't you now need to destroy that document too and if so would they do it and give you a certified copy that the certified document of your files were destroyed?
It reminds me of another slogan I saw on the side of a residential moving vehicle. It read:
We care about your load.

Seriously.

Does any one take the time to think about what they are putting on their commercial trucks before they let them loose in the world to do business? I tend to think they don't.