I’ve filed a PPO in the past. They’re worthless, except as toilet paper. However, my ex KNEW I would shoot and maybe ask questions later. Only thing that saved MY bacon.
(This all sounds SO dramatic in retrospect, LOL! It was a whole ‘nother LIFETIME ago!)
A PPO is very useful. After you shoot the SOB who broke it, you show it to the police and they go call the morgue wagon and get donuts. YOur justification is on that one piece of paper.