Mess up Busta Rhymes' order and there will be hell to pay. This is the lesson that employees of a Florida fast food restaurant learned earlier this week.

The 40-year-old rapper reportedly entered a South Beach fast food restaurant, Cheeseburger Baby, early Tuesday (April 2) morning, and tried to cut the line.

All Bussa Buss wanted was to get his food in a timely fashion, and when workers at the eatery didn't comply, he littered them with curse words, and a gay slur. "He got very upset," said owner Stephanie Vitori. "When we wouldn't take his order first when he was the last one to come in. We treat everyone as equals here at CBB. You can't skip the line of 10 people waiting in front of you."

Vitori's Cheeseburger Baby has served everyone from Jay-Z to chef Anthony Bourdain. "Never have we had a problem with a celebrity. That changed last night."

Instead of standing in line, Busta went out to his car to wait for the order. When it arrived, he still wasn't happy. "He came back in the restaurant and started becoming outwardly angry," she continued. "He was calling our delivery driver Santiago a 'f-g' multiple times, and me a 'b----' and [telling] me 'to shut the f--- up' because we put his salt, pepper, ketchup, and mayo — that he asked for — on the side."

Apparently "on the side" is how CBB does it to keep the burger from getting soggy, but Busta didn't know that — or care. He got so upset that police were called to the scene, at which point he exited stage left.

But the burger meltdown didn't stop there. Busta called the burger joint to tell them that his cheeseburger was missing cheese!

They deny his claim.

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(Photo:  Bryan Bedder/Getty Images for VH1 Save The Music)