This is true as far as it goes, but college professors are not unionized. In the public schools, firing a teacher for cause takes decades, when it happens at all, regardless of the circumstances. Convicted felons get to keep teaching in most states. Some examples:
Originally Posted by Molon Labe
LAUSD substitute thrice accused of abuse moved to another district
City kept teacher even after learning of her criminal past
Brentwood superintendent says 'legal limitations' kept abusive teacher in district
And then there are these:
-- During a 2002 bench trial, a judge found DeKalb high school teacher and girls’ swim coach Thomas O'Brien guilty of public indecency after testimony that O'Brien was seen masturbating as he stood naked in the doorway of his home's garage, Assistant State's Attorney Stephanie Klein said. Despite the judge's verdict, O'Brien resigned from his teaching job, received court supervision and eventually was able to have the offense expunged. All records of his case held by police, prosecutors and the court were destroyed, court and city officials said. No action was ever taken against his teaching certificate. If these teachers can't be fired or even suspended for felony convictions, who is going to discipline them for not reporting a loading Poptart?
-- In 2003, Chicago Public School teacher Judith A. Howell, was arrested after a police officer observed her purchasing crack cocaine in the lobby of a public housing project. She pleaded guilty but received a "410 probation" which meant that a conviction was not placed on her record.
-- Kay Marchioni had her Ohio teaching certificate revoked for unprofessional conduct in 1988 after she used stolen credit card information to make purchases. She was convicted on two counts of attempted theft, according to documents with the Illinois State Board of Education. Despite her name being entered into a national database of teachers who have lost their licenses, she obtained an Illinois teaching certificate and was hired by Chicago Public Schools, where she taught for 14 years until she was fired. No action has been taken to suspend or revoke her Illinois teaching certificate. Her Ohio conviction has been expunged and no longer shows up on criminal background checks.
-- In 2003, Chicago Public Schools teacher Larry Jackson pleaded guilty to possession of controlled substance after a search of the teacher following an arrest found the teacher in possession of crack cocaine. He also received a "410 probation," which prevents the offense from being placed on his criminal record.