I can bring to mind at least three shooting incidents locally (a couple with loss of life) in the past couple years over parking lot confrontations ... "... You got know when to walk away, know when to run..."
What a lot of folks out there still don't comprehend is that there is a sub-culture of morons out there who are looking to provoke confrontations over stuff such as this. Road rage also is now epidemic in this country. Social media delights in depicting tawdry video of violence over juvenile stupidity.
And yes, we do have a lot of folks that don't understand the white lines in parking lots and can't be troubled to read the signage...
But someone has to be the grown-up, Last fall, I backed down from a drunken moron -- who wanted to fight me! -- over a parking issue at a college football game (he thought, apparently based on my facial expression, that I'd ridiculed his wife's poor attempt at parking his F-250 that he was drunk to drive); my two young sons in law and two nephews asked why I didn't stand up to him, all I could say was, it's simply not worth it and I got nothing to prove. I didn't want anyone getting hurt because of someone's big ego
"Tactical verbal skills" is the new vernacular. Sounds way more cool...