The usual scenario involves suspicious glances, inattentive clerks or rude service -- not handcuffs.
Yet when a black teen said he was wrongly jailed after buying a $350 belt at a Manhattan luxury store, it struck a nerve in African-Americans accustomed to finding that their money is not necessarily as good as everyone else's. Shopping while black, they say, can be a humiliating experience.
Much attention has been paid to the issue over the years -- Oprah Winfrey complained that a Swiss clerk did not think she could afford a $38,000 handbag, and even President Barack Obama has said he was once followed in stores. But according to shoppers interviewed Monday, many people don't recognize how prevalent retail discrimination is, and how the consistent stream of small insults adds up to a large problem.
"It's one thing if you don't understand. But don't ever tell me it doesn't happen to me," said Natasha Eubanks, who shops often at high-end stores in New York City. "You can't assume it doesn't happen just because it doesn't happen to you."
What happens: Sometimes, Eubanks said, it takes clerks more than five minutes to simply acknowledge her presence. Or they brush her off after a token greeting. Or they ask her question after question: "You're a black girl up in Chanel. They want to know what you're doing here, and what you do for a living."
She says she has dealt with this type of treatment at least 20 times in New York City.
"I don't look like that typical chick who walks into that type of store," said Eubanks, owner of the celebrity website theYBF.com. "It feels differently than when you go into a store and are treated properly."
Arrested: Trayvon Christian's problem was not how he was treated when he went into Barneys New York -- it was what happened afterward. In a lawsuit filed last week, the 19-year-old said that he bought a Ferragamo belt at the Manhattan store, and when he left he was accosted by undercover city police officers.
According to the lawsuit, police said Christian "could not afford to make such an expensive purchase." He was arrested and detained, though he showed police the receipt, the debit card he used and identification, the lawsuit said.
After Christian's lawsuit was filed, another black Barneys shopper said she was accused of fraud after purchasing a $2,500 handbag, and the black actor Robert Brown said he was paraded through Macy's in handcuffs and detained for an hour after being falsely accused of credit card fraud.
For Yvonne Chan, the reports were a painful reminder of when she worked in a liquor store in a predominantly white Massachusetts town. Every few months someone would be caught stealing, and about half the time it was a black person.
"You find yourself watching black people. (The stealing) only happens once in a while, but it changes your perception," Chan said.
Chan, a graduate student, always tried to remind herself not to act on stereotypes, but, "Like it or not, I'm going to have a preconceived notion of races from my experiences. As much as I would like to force my brain not to think like that and put everyone on an even playing field, stereotypes play a role in our society ... we skew the view of people as individuals."
Watched: Skewed views can affect who gets arrested for retail theft, said Jerome Williams, a business professor at Rutgers University who has studied marketplace discrimination.
Many people justify racial profiling by saying that black customers are more likely to steal. But one study has shown that white women in their 40s engaged in more shoplifting than other demographic groups, Williams said.
"The reason they don't show up in crime statistics is because people aren't watching them," said Williams.
Statistics showing that black customers steal more "are not really an indication of who's shoplifting," he said. "It's a reflection of who's getting caught. That's a reflection of who's getting watched. It becomes a self-fulfilling prophecy."
Dido Kanyandekwe knows he is being watched. "But I joke with them; I see them looking at me and I say, 'Hello, I see you!' And I wave," said the 18-year-old college student in New York City, who was in Barneys on Monday buying a $600-plus pair of Italian designer sneakers.
"Most black people don't have the money to buy stuff at Barneys," said Kanyandekwe, the son of wealthy parents, before paying for the black leather shoes with a credit card. "But that does not mean all black people are not able to buy these things."
Black people are not the only ones who can face unequal treatment in stores. Hispanics have made the same complaints. And Sher Graham, a white woman who lives in Mobile, Ala., says black servers in the fast-food restaurants she visits often wait on black customers first.
A few months ago, she said, a black cashier started talking to black women standing in line behind her about their order. "When I brought this to her attention, she just shrugged her shoulders and completely ignored me. This action happens more times than not here in the Gulf Coast region," Graham, a consultant and speaker, said in an email interview.
Yet if the number of complaints is any guide, the experience is most common for African-Americans.
Candace Witherspoon, a wardrobe stylist in Los Angeles, went to a store in Century City last April to buy a purse and shop for one of her celebrity clients. She was wearing a T-shirt and jeans. In a letter to the company, Witherspoon said the sales associate barely greeted her, then ignored her, in contrast with her treatment of white patrons.
"As the other customers left, she said 'Thanks ladies for shopping. Have a good day.' When I left she gave me a nasty look and didn't say anything," Witherspoon's letter said.
Toni Duclottni, who runs a fashion web site in Los Angeles, recently went to a Beverly Hills department store intending to spend about $4,000 on shoes. But she took her business elsewhere after being ignored.
"It's frustrating to be constantly ignored and people pretend it doesn't happen," she said.
To her, the solution is simple.
"They rush to judgment, they jump into it assuming something without speaking to a person," Duclottni said. "They'd be surprised if they just walked up and said, "Hello, can I help you find something?' They'd be surprised."