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foxnews | It could be a long semester for David Petraeus.

The retired four-star general and former CIA director — whose career ended in scandal last year — was heckled by roughly a dozen protesters following his first lecture at the City University of New York’s Macaulay Honors College on Monday, according to a 90-second video posted online Wednesday that has been viewed more than 130,000 times.

“Why are you teaching at CUNY?” one heckler screamed as Petraeus walked near Central Park. “What do you have to say, huh?”

The hecklers seemed more enraged by Petraeus' 37-year military career, which culminated in his commanding U.S. forces in Afghanistan, than the adultery scandal which prompted his resignation from the CIA in November.

Petraeus, 60, was also blasted as a “scumbag” and a “war criminal” by the angry throng. The heckling became so intense at one point that Petraeus walked into the street and dodged oncoming traffic — including a city bus — as his critics closely followed.

“Petraeus out of CUNY! Petraeus out of CUNY!” the hecklers continued.

Several in the crowd promised to harass Petraeus after “every class” at the public university, while another demanded that he "leave.”

“He’s a war criminal, there’s a war criminal right here,” another protester said. “He deserves to be tried.”

Petraeus admitted having an affair with Paula Broadwell — author of his biography "All In: The Education of General David Petraeus" — when he resigned from the CIA. The affair came to light in a messy fashion: Broadwell was accused of sending harassing emails to a Florida socialite who was friends with the general's family, prompting her to complain to an acquaintance who worked for the FBI. Investigators traced the emails to Broadwell, and in the course of doing so, uncovered intimate messages between Broadwell and Petraeus. Although the affair, which would have violated military rules, allegedly occurred after Petraeus left the Army, it was also seen as a serious matter at the CIA, where such secrets could make someone vulnerable to compromise.

Months after stepping down, Petraeus made it known he would seek a career in academia. The New York Times reported in July that Petraeus would teach a seminar at the school for just $1 following a report by Gawker.com that indicated he was to be paid $200,000 according to documents the website obtained.

Petraeus proposed the salary reduction following criticism of his anticipated compensation to “remove money as a point of controversy,” according to his attorney, Robert Barnett.

"The general never was taking on this teaching assignment for the money," Barnett told The Associated Press. "Once controversy arose about the amount he was being paid, he decided it was much more important to keep the focus on the students, on the school and on the teaching and not have it be about the money."

Petraeus, who has a doctorate from Princeton University and extensive teaching experience, was scheduled to start at the school as a visiting professor on Aug. 1.

The college’s dean, Ann Kirschner, lauded Petraeus while announcing the hire in April, saying the position correlates with his research interests in energy, manufacturing, life sciences and information technology and their implications for the U.S. His first seminar this fall is a course in American Studies called “Are We on the Threshold of the North American Decade?”

In a statement posted to the college's website, Kirschner called for a more civilized debate.