Sure. It's a long story, so I'll keep it brief. I covered someone's shift, on Thanksgiving, and ended up working with "Bob", who I normally didn't work with. Bob and I go for a drive, and I stop at the store for a Mountain Dew.

I get back in the car, with said MD, and Bob (who sort of grunted, instead of spoke) starts making noises and pointing at my drink. I figured he probably wanted pop, but I wasn't sure if that was allowed or not, so I told him "when we get back to the house, I'll ask if you can have some".

Then, Bob picks his nose, and wipes a huge booger on my dashboard. I'm like "Bob, wipe that off, right now. That's gross and it's not nice.". I may have said it more forcefully, than I had to, but it kinda pissed me off, because it seemed like he did it out of spite.

Anyways, I pull out of the parking lot, and probably get, about, 30 yards down the street. Next thing I know, Bob is raining punches down on my face, left and right, and I'm trying to manage my stick shift into the next available parking lot.

I finally park, and Bob now has ripped my rear view mirror off, and is holding it like he's going to beat me with it. I grabbed it out of his hand, and then grab both of his wrists, to stop any more punches. He's still grunting, and rocking back and forth, so I go "you can have a pop, when we get back"..

..instantly calm

So I drive back to the home, and when we get out, I was so mad I was shaking. I wanted to bash his deformed skull in. Instead, I went inside and told my coworkers, about what had transpired. They chuckled, and had me fill out an incident report. I was later reimbursed for the mirror.

TL;DR- didn't give a disabled guy a Mountain Dew; got beat up, while driving, for it -_-

Edit: that's hilarious that I said I'd keep it brief