Consider the man standing by the office fax machine and scratching his head when a co-worker walks by.
"Do you know anything about this fax machine?" the puzzled fellow asks.
"A little. What's wrong?"
"Well, I sent a fax, and the recipient called back to say all she received was a blank page. I tried it again, and the same thing happened."
"How did you load the sheet?" the other worker asks.
"Well, it's confidential, so I folded it in half, like this, so no one else could read it."
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