A Texas A&M professor named Irwin Horwitz failed his entire Business Management class after a semester of ‘lying, back-stabbing and intimidation.’

A Texas A&M Galveston professor says he hit a “breaking point” as he failed an entire class of students in his management course that he said required “security guards” for him to feel safe teaching.

In a scathing email sent to students in his Strategic Management class, Texas A&M Galveston professor Irwin Horwitz called his class a disgrace to the school and said “it became apparent they couldn’t do some of the most simple and basic things they should have been able to do,” KPRC-TV reports. Horwitz said a semester of backstabbing, lying, cheating and disrespect has caused him to fail everyone in the class and that he will no longer be teaching the course.

“Enough was enough,” Horwitz wrote in the email obtained by KPRC. “Yesterday I reached the breaking point.”

The lengthy, fiery email to students explained to students why they would all be receiving failing grades, included is Horwitz’s claim that the students were spreading untrue online rumors about his wife and that he felt threatened enough to physically teach the course that he required police protection.

Read the article “Texas A&M Professor Fails Entire Class” on houston.cbslocal.com.