We have a spam filter here at work, which works really well. It quarantines the spam, so you can check it from time to time and rescue any legitimate messages it might have caught (pretty rare, but it happens). Sometimes I can't help but look at the spam.
Today I discovered a completely new flavor of spam: totally blank.
No subject, no contents, nothing. It's a revolution in subliminal advertising!
I'm so intrigued by its enigmatic blankess, I'm almost tempted to keep it.