At the end of the improvisational class’s performance on June 10, appropriately titled “Yes, And … Curtain,” the students wouldn’t let teacher and adviser Jim McCabe walk off the stage without acknowledging him and having him take a bow before the audience of some 150 people.

It was going to be his last at Southern Regional High School, after all. He wrote his letter of resignation to Superintendent Craig Henry and the board of education in January.

“I’ve known Jim as a student, parent and colleague, and it’s been dynamic to see him from each of those roles,” said…