Ooops -- missed this. I actually did this once, quite a number of years ago. On a Southwest flight from LAS to BUR, the young adult pax seated behind my elderly mother decided that kicking the seat was fine and, after being cautioned by the FA 3 times to desist, hauled off and kicked the seat so hard that my mother doubled over. I called the FA over, explained what happened, said it was a battery and I wanted the police to meet the plane. My intent was, solely, to intimidate the pax into behaving. However, when we landed at BUR, the police were present (in force!) and pulled the pax out of line as we were exiting. We were offered the opportunity to press charges, but declined to do so out of the goodness of our hearts, primarily because this young woman was so terrified that I was reasonably sure she'd never pull that stunt again.