Apparently not content with his current list of people to hate on, Mel Gibson exchanged harsh words with a professor Thursday in response to criticism about his latest film, Apocalypto. The latest subject of Gibson's infamous ire was Alicia Estrada, an assistant professor of Central American studies at California State University, Northridge. During an on-campus screening of the film, Estrada stood up and expressed her opinion that the film misrepresented Mayan culture.

Gibson decided to respond with his usual tact by directing expletives at the professor, who was promptly labeled a "heckler" and removed by event organizers.

"In no way was my question aggressive in the way that he responded to it," said Estrada. "These are questions that my peers, my colleagues, ask me every time I make a presentation. These are questions I pose to my students in the classroom."

Gibson's (likely overworked) publicist had a different opinion of Estrada, saying, "The woman was rude and disruptive inasmuch as the event organizers had to escort her out."

Also during the screening, which included questions and answers with Gibson, two students were escorted out when they refused to give up the microphone while asking questions.

According to a university spokesperson, Gibson "expressed regret that things had gotten out of hand."

Story of his life.

In particular, many contend that the scenes of human sacrifice and other brutalities depicted in Apocalypto are the racist opinions of historians who do not have an accurate picture of ancient Mayan society.

Gibson continues to contend that human sacrifice among the Mayans is well-documented and accepted by many anthropologists. In addition, he insists the movie represents the culture at its lowest point, when its many achievements in art, science and economics had been squandered.

Few, if any, could question Gibson's commitment to accurately portraying events occuring several (say, two) thousand years in the past, especially in regard to who killed whom and in what grisly manner.