Cosmic Joker
A term attributed to author Charles Fort, referring to a higher power who is responsible for twists of fate and acts upon his victims at the most opportune or inopportune times. A persona of Karma, bringing down the undeserving and raising up the unfortunate and deserving.
When you see the jerk in the that almost ran you off the road passing get caught in a speed trap 5 minutes later. "The Cosmic Joker nailed his ass"