Colleague was so rude to customers we kept him
This was in a videogame / PC hardware shop in the UK in the 2000s.
We hired this young Brazilian guy. He'd only been in the country a couple of months. He had just enough English to do the job, with a strong accent. But he'd worked retail and knew games.
But we had no idea until after we'd hired him that he was incredibly blunt, downright rude in fact, with customers. Every customer that wasn't making a straightforward purchase was fair game.
I remember on his first day, a customer asking where something was:
"Is over there". He said, vaguely waving towards one corner of the shop.
"Um, whereabouts?"
"On the fucking shelf! Stupid!" Luckily they laughed that off. But they still couldn't find it.
"I can't see it."
"IS THERE!!" Pointing angrily at it.
"I still can't see it."
He came out from behind the counter, marched up to the game they wanted, plucked it off the shelf, and practically rubbed it in their face. "Is here! You blind or something?"
Our hearts would stop every time he spoke to a customer like that, (especially if they hadn't earned such treatment), but he came good when we had a really difficult or rude customer, because he'd give them a taste of their own medicine, with interest. He spoke to them like we wished we had the guts to, so we kinda lived vicariously through him, and it was thrilling.
The funniest thing about it was, he'd told us that he was born "on the edge of the rainforest". So every time we had to apologise to a customer for his attitude (and we often did), we'd use that. For anyone who's seen (classic British sitcom) Fawlty Towers, a bit like Basil apologising for Manuel by explaining "He's from Barcelona".
We'd say "Sorry about him, he's from the edge of the rainforest." Amusingly, that'd often be enough to placate them, or perhaps confuse them enough that they'd forget about it. 😅
But his attitude got worse. He'd get ruder and ruder as the frustration of the job grew over time. We started just saying "Sorry about him, he was born IN the rainforest." and then "...He was born in the rainforest, he's not used to civilised society".
By the end of his time, it was "Sorry about him, he was born in the RAINFOREST CANOPY. He's not used to human contact." 🤣
We never told upper management about his ways because we found the whole thing so funny. He left of his own accord eventually.