The case dates back to December 2018, when Kerr was alleged to have told Pupil B, who asked whether he would attend the school production of Grease, words to the effect of: "I will if you are going to be wearing the low-cut crop top and tight trousers, but I might not have a job the next day."
Kerr denied the conversation had happened and said he had been away in Seville for 10 days at the time. The panel found the allegation had been proved, along with a number of others.
It also concluded that in February the following year he had shouted at Pupil A, spat on his own hand and wiped it on the pupil's arm, and pushed the student. A separate claim that he told another pupil "I am going to burn you" was found not to be proved. Kerr told the hearing he had not used the phrase, which sounded like it had been taken from a comic.
A string of statements made to Pupil C were found to have been proven. They included: "You'll never be as smart as me ... I have written over 50 books" and "You are thick and stupid ... you will never make anything of your life."
A representative for Kerr told the hearing that, at 75, he had no plans to return to the profession. The panel said it took into account that the events had taken place about seven years ago and that Kerr had not returned to the classroom since shortly afterwards.
However, it found the conduct was "very serious", involved multiple pupils in three separate incidents and "displayed a pattern of concerning behaviour". Rejecting a submission that no sanction was necessary, the panel concluded removal of his registration was "the appropriate and proportionate sanction". It decided he was unfit to teach and ordered that he be taken off the register for a period of one year.