WTF?

With the dog-sit commute being roughly 2 hours each way, I get on the road, throw on some music and zone out.

The song ends, I look to the right and...
"Holy crap!"

This is what I see:Let's get a close-up:

"Tailgaters Get The Evil Eye"
Now, i'm a HUGE wuss. I run and leap into my bed & under the covers after turning off the lights in case some mythological monster from the latest Blockbuster that I haven't seen and will never see, grabs my legs from under my bed and pulls me into his fiery realm where he eats out my eyes. Yes, that much of a wuss. So you can imagine what I did when this pulled up to my right.
"Ahhh!H!!!!aHHAHHHH!!!"
Thank goodness we were in stand-still traffic or I might've had a little fender-bender.
Then I realized that it's pretty darn awesome and snapped this photo for your viewing pleasure (you're welcome).
I'm guessing the eye opens when someone gets to close? Maybe squirts something? No clue, nobody dared to try, which is surprising considering the guy was going about 30mph BELOW the speed limit and holding everyone up.
I guess you can drive like a dick when you have a corpse hanging out of your truck bed.