Drive-thru line had backed up and was blocking my car in. Most folks let you out, some folks don't pay attention. There was a sheriff's deputy blocking me when I got in my car, he pulled forward, car behind him didn't leave me room to get out, but it happens. Guy behind him is in a big ol' lifted Chevy diesel, and gets RIGHT UP ON that guy, basically being a dick because he thought it was funny or could compensate for his small weiner in ways the truck could not. Whatever. I back it out slow, its tight but not impossible. So my window is right by his and he yells down at me "DERPA DERP!" as I put it in gear and roll out. I replied that he should try eating a bag of male genitals. He yells about fucking me up and opens his door to deploy whatever ladder/elevator he uses to get in and out of his truck. Leaves truck in gear. Rear-ends car in front of him. Glorious sound of crunching plastic and glass. Sheriff steps out and I call out as I slowly pull away "Enjoy the rest of your day,"