Restaurant ghost caught by security camera?

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Could it be a bug or a ghost captured on a security camera at an Iowa restaurant.

KWWL reported Chuck & Edna's Maid-Rite restaurant has had two potential paranormal occurrences  caught on camera.

The first is a shadowy shape that goes to the sink.  Some say it's a shadow, others a bug.  That, according to KWWL, happened on April 14.

Then five days later, on April 19, the Daily Mail reported that a different camera showed cups sliding off a shelf, hitting a worker on the head.  A second stack fell sideways.