ABC News August 10, 2018

'What Would You Do?' hones in on politically charged clothing and its association with free speech

WATCH: What Would You Do: Manager tells man to remove MAGA hat

Tonight on "What Would You Do?" a man is denied service at a restaurant for wearing a "Make America Great Again" hat and later for wearing an "Impeach 45" T-shirt.

In bars and restaurants across the country, and even abroad, we've seen stories of altercations between customers wearing "Make America Great Again" hats. Wearing your politics on your sleeve has always been a source of debate, but the popularity of the "MAGA" hat has put the topic at the forefront.

(MORE: NYC tourist robbed at knifepoint of 'Make America Great Again' hat)

Just a few months ago, The Cheesecake Factory fired two employees after they berated a customer for wearing a "MAGA" hat. And even more recently, a man was arrested for snatching a "MAGA" hat off of the head of a fellow diner. A video documenting the incident has gone viral.

(MORE: Man arrested, charged after video of him allegedly taking teen's 'MAGA' hat goes viral)

Similarly, controversy arose when a third party seller started selling "Impeach 45" T-shirts on the website of retailer, Walmart. A "boycott Walmart" campaign began almost immediately by those outraged that the website would carry the merchandise. The company has since removed the shirt from their site.

Actors Michael and Brian in character during an episode of "What Would You Do?"

In tonight's episode, customers witness a man being denied service at a diner for wearing clothing that sports his political beliefs. Our actor, Brian, first wears a "Make America Great Again" hat, and then next, wears an "Impeach 45" T-shirt. The diner manager, played by Michael, makes it clear that if Brian doesn’t remove his politically motivated clothing, he won't receive service.

Brian: 'Look, I'm allowed to wear a hat. I can express myself how I want."

Michael: "This is not expression, this is hate speech."

A group of customers angrily leave a restaurant when they see a manager tell a man he won't be served because of his MAGA hat.

Throughout the day, some customers support the diner's right to express his political beliefs whatever they may be, while others show their support for his or the manager's specific political viewpoint.

"You're doing the right thing. Call the police," says one man in support of the manager's refusal to serve the actor when he wore the "Impeach 45" shirt.

A customer chimes in during this scene of "What Would You Do?."

But still, several people felt that free speech is most important. One diner, after recording the incident on his phone, left with Brian after he was kicked out based on his "Impeach 45" T-shirt. "If you're removing him, I'm leaving also," he says.

Another customer during an interview with host, John Quinones, says, "In this country, we're blessed because you can have an opinion, you can wear a shirt that tells your opinion, or a hat, or what have you and you don’t go to jail for it, right?"

Customers being interviewed by "What Would You Do?" host John Quinones.

To see how other customers react, make sure to tune in to "What Would You Do?" tonight at 9/8c on ABC.