PETALING JAYA - "If you don't like the taste of our food, don't come here," said a stall owner in a kopitiam in Taman Tun Dr Ismail.
The owner, who wants to remain anonymous, was responding to a customer's complaint that his meal was not up to his taste buds.
"You can't please everyone. Some customers are too picky. Sometimes, they send back dishes (to the kitchen) twice or thrice, claiming that they are not done right," said the owner, who has been doing business for over 30 years.
Welcome to the world of service - where customers and waiters passionately trade barbs about how bad the other is.
Last week, a Malay daily reported that a group of customers went on a rampage at a restaurant in Taman Danau Kota in Kuala Lumpur after claiming that the noodle dish they had ordered was too spicy.
The group, whose rampage damaged the restaurant's equipment, had earlier tried to leave without paying for their meal.
Waitress Karmila Zainudin, 27, said there were instances when customers cancelled their orders, claiming that the service was too slow.
"Once, we told a customer that it would take longer than usual to prepare his meal because we were busy that day. After just 10 minutes of waiting, he left without saying a word although his order was being prepared," she said.
While there are customers from hell everywhere, waiting staff are also known for their horrible behaviour.
Business owner Akidq Zafran, 25, said he once had a bad experience at a mamak restaurant in Shah Alam.
"I asked the waiter for sugar. He refused my request, claiming that he was busy," he said, adding that when he insisted, the man slammed a saucer of sugar on his table.
He said although it was a mamak restaurant, service should still be good.
A check on hospitality review website Tripadvisor revealed that rude waiters were a common complaint against many restaurants in the country.
User jayelle8 from Petaling Jaya wrote a review on a restaurant in Langkawi: "Rude waitress in the morning just didn't help. She was rude not only to us but the other customers around us."
"Rude waiters, order didn't come on time, cashier is very careless, bills (for) things we did not call," commented user Abigail T on a restaurant in George Town.
Netizens had no shortage of horror stories to share.
On Twitter, @cheryna27 recounted her negative experience at a popular cafe in KLCC: "Waitress looked at me down her nose, delayed my order, sent a wrong one harshly and did not apologise. Because I'm a local."
Twitter user @Rei_ZLee pointed out that there were some rude customers who treated waiting staff harshly.
"Kinda like a slave really."
Victoria, who tweets with the handle @guesswho1409, shared how she saw a young woman shouting insults at a worker at a drinks stall for misunderstanding her order.
The customer yelled: "So stupid, that's why you only became a waiter!".
Tweeter @samsoul77 also saw a customer shouting, "I wanted the thigh section, not the bottom! Stupid kid!" in a fast food outlet in Bukit Bintang.