Chronic Honkers

Ever ride with someone who hits the horn more than they hit the foot pedals?
Chrissie is a chronic honker. Woe to the cad in front of her who doesn't accelerate the millisecond the light turns green! Woe to the scoundrel who dares to pass in front of her!
The honk of wrath shall fall on their ears!
I'm not sure how to classify it. Paranoid? Childish?
Once a car in front of her stopped to drop someone off. There was nowhere to pull over so they had to stop in the street, slowing down Chrissie for several seconds.
She leaned into the horn like she was deploying a weapon.
"C'mon," I said. "They're dropping a guy off. It's not like traffic's backing up-"
"They're blocking my way!" she huffed, hitting the horn a few extra times. I was mortified.
Even those who don't block her way may still risk her honk. Once she gave a sound honking to some chump who turned into the wrong lane. I didn't think it was that big of a deal since

1. It was very early and there was no other traffic.
2. He was in the opposite lane and in no danger to us.

"Why'd you honk at him?" I said.
"He's not supposed to do that!" she said.

I avoid getting in Chrissie's car at all costs.