Bristol Palin Attacked by Heckler After Riding Mechanical Bull

Bristol Palin won't have anybody talking trash about her mom!

Thursday night, Bristol, 20, was heckled while riding a mechanical bull at the Saddle Ranch in L.A. After being thrown from the bull, Sarah Palin's 20-year-old daughter confronted her detractor.

"Did you ride Levi [Johnston] like that?" the man yelled, as shown in Hollywood TV's video. "Your mother's a whore!"

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The former Dancing with the Stars contestant -- who's currently filming a reality TV show with her 3-year-old son, Tripp, and fellow contestant Kyle Massey -- marched right up to the heckler. "What'd you say?" she asked him directly. 

"You're mother's the f**king devil, dude," the man, who identified himself as being 47 years old, said.

"Oh, is she?" Bristol quipped. "What'd she do wrong?"

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"She lives. She breathes," the man said. "If there was a hell -- which I don't believe there is -- she will be there. She's evil."

Unwavering, Bristol snapped back: "Why's that? Is it because you're a homosexual?"

"Pretty much!" her critic replied. "And why'd you say I'm a homosexual?"

"I can tell you are," the daughter of the former Vice Presidential candidate replied. 

The single mom repeatedly asked the man for "one example" of "why [my mother] is a whore," but he continued to tell her that Sarah was "evil."

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"Well, you know what," the man snapped. "You don't look anything like [NBA player] Glen Rice. I thought you would." 

"You're right," Bristol said sarcastically. "I'm half African-American. You caught me!"

She stepped away form the conversation, then had yet another confrontation with the angry patron. "You're f**king white trash from Wasilla," he screamed. "Your mom ran that city into the f**king grave. F**k you, you f**king b*tch!"

Without so much as a word, Bristol stormed out of the establishment.

Tell Us: Did Bristol handle herself well given the circumstances?