Saw a Whacko this morning

So I show up at the middle school, as I am chaperone for the 8th grade touring the tech center. I back in my space on the back row like most people do. Dude in The dually behind me respects my maneuver then continues to drop his child off at the front curb. 3 vehicles later, another truck starts backing in 4 spaces to my right. Karen has to stop in front of me, with her daughter in the car, and then the rant starts. Hands in the air and all.
"What the hell are you doing? OMG backing in? Really? Just pull in like everyone else for crying out loud. I need to get out of here ."

Geez lady, take a chill pill.

She saw me laughing. My bad. Her daughter looked scared.
I always back in straight drive spaces especially when there's children around. You can see the space is empty when you pull up and the car maneuvers easier backwards like a forklift and then you can see as you pull out and not run anybody over...