"McTeacher's Night" has drawn criticism from some elementary school teachers in South San Francisco according to the San Francisco Chronicle. During the fast-food chain's PR event, teachers volunteer to work a three-hour shift at a McDonald's, preparing and serving food. Then the restaurant donates 20 percent of the profits to the teachers' school. "This is exploiting teachers for a real, live McDonald's commercial," one first-grade teacher told the Chronicle. "We will be endorsing a product that contributes to the epidemic of childhood obesity and heart disease, even though the state dictates that we teach students to avoid junk food."