The scariest thing I've ever seen -- in the daylight

It was a brisk Minnesota morning, a few days shy of Halloween. I didn't expect to be frightened. I just needed some exercise and wanted to enjoy the beautiful fall foliage, cool temperatures after a few days cooped up in an airplane, airport and hospital room. And then I saw it:

AAAAAAAAAAAHHHHHHHHHHH! OMG! Could it be true?

And that's my scary Halloween story for 2008.