I work retail and I'm a manager. Surprisingly, I don't deal with too many assholes on a daily basis.
Over the holiday season we had a great Buy One Get One 75% off deal going. This guy came in and bought shoes for his girlfriend (7.5 instead of her size 10, since we were sold out of nearly everything and he wanted her to have SOMEthing to open for Xmas) and a 75% off pair for himself.
Well he came in Monday to exchange, but we didn't have the size 10 yet so he decided to return (then buy the 10 later). That's fine, and I explained if he returns then he loses the BOGO75 and his shoes that he's keeping become full priced.
He went apeshit.
"This is fucking bullshit! You're a lying bitch. You told me I could keep it. I asked SPECIFICALLY and you said there'd be no problem. You're a lying piece of shit who just wants to make a sale." 1. I don't get commission for your sale, 2. I don't give a shit if you spend $15 on shoes (75% off), 3. There's isn't a "problem", you can return whatever you want, exchanges are just better for the sale, 4. Does your tiny penis feel bigger now that you've berated me? (I obviously never said any of this to him.)
Anyway, I'm nice, explain policy, he verbally abuses me more, asks for my bosses contact info, I happily give him my name.
Today my boss visits the store and, yes, the guy wrote a pretty nasty email about how I lied to him (untrue) and "pressured" him into the sale (anyone who's seen me sell knows that I'm super low pressure, so also untrue - maybe you felt pressured because IT WAS FUCKING CHRISTMAS EVE AND YOU HAD NOTHING TO GIVE YOUR GF YOU DOUCHE).
Anyway, so my boss decides that I need to be written up for this "poor customer interaction". ARE YOU KIDDING NE? I was literally verbally abused by this asshole and TOOK IT and because he wrote an entirely fictional email now we have to lick his asshole (he's getting an extra 30% off that purchase and 30% off a future purchase - not that I ever want him in my store again) and I get in trouble? THAT is bullshit.
Sigh.
/rant