According to YouTube user Florida Driver, she was driving on SR 41 near Tampa on Monday when a truck started tailgating her. Sensing something could go wrong, she pulled out her phone and started recording (not exactly the safest thing to do while driving, too).
"I couldn't move over because there were trucks in the right lane, and I sure as heck wasn't going to speed on a rainy day with the roads being as slick as they were," she says in the video description.
As the truck pulls even with her on the right, the driver stares her down and extends a certain one-finger gesture typical of sufferers of road rage. He then zooms past on those slick roads and what she calls "instant karma" takes place.
(NOTE: Video features an offensive single-finger hand gesture.)