Mike Langyel says he wasn't banging on the piano, like some people say, that night several years ago when a few hundred Milwaukee Public Schools teachers filled the auditorium while the School Board was trying to meet.
"I know I was in the key of C," he said. "I didn't have to touch any black keys." Nothing he played was discordant, he said.
The teachers, unhappy about the state of contract negotiations, disrupted the meeting with boos, noisemakers and catcalls before leaving en masse.
Langyel's contribution was the piano accompaniment. For some reason, an upright piano used to be kept in the auditorium, right at the foot of the stage, just a few feet from where Superintendent William Andrekopoulos sat. Langyel used it, particularly when Andrekopoulos spoke.
"Business as usual sometimes has to stop when you're really trying to fight for kids," Langyel said in an interview recently.
Was what he did that night a good idea? "At the time," he said.
The piano disappeared after that. But Langyel didn't.