And then he appears to try again on purpose.
First off, we're told that the motorist in the following video is wearing a Missouri state trooper uniform, but we're not experts on police uniforms here. It's entirely possible he's just a mall security guard or a male stripper. But whatever his job is, he is not the greatest driver in the world. The video starts with the alleged cop changing lanes to pass a car and, in doing so, swerving directly in front of a motorcycle coming up on his left.
This alone would have been bad enough, but then the "cop" seems to come after the motorcyclist again on purpose, making him not only careless but also an asshole.