Some psychologists are claiming that if you don't have a Facebook account, that's a big red flag that you're not very sociable, you're abnormal and could be dangerous.

The tech site Slashdot has brought to light a German news story where an expert states that not having a Facebook account is a sign you could be a mass murderer. Apparently, this expert has put together the connection that neither Colorado theater shooter James Holmes or Norwegian mass murderer Anders Behring Breivik had Facebook profiles to come up with this conclusion.

Other web sites warn singles not to date anyone without a Facebook page since it automatically raises red flags (obviously, you're trying to hide something).

In addition, employers are also increasingly raising concerns over potential employees who do not have a Facebook account.

The idea that someone who doesn't have a Facebook account is some kind of weirdo is just ridiculous to me. I know plenty of people who don't have Facebook accounts who are great citizens. But just to be safe, I'm going to keep a close eye on my dad... and Aunt... and Uncle Jim, I always suspected he could be a bad car deal away from losing it...

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