> Because of previous labor violations teachers were not allowed to show up before class started So the school was expecting teachers to come in early to setup

> Because of previous labor violations teachers were not allowed to show up before class started So the school was expecting teachers to come in early to setup, not paying them for those hours and punishing those that didn't. This isn't a problem created by labor unions, it is a problem created by exploitative companies. And when the company decided how they would address the issue they decided that pre-class preparation wasn't worth paying for.