SUBSTITUTE FROM A GROUP HOME

A couple weeks ago at a South Bend, Ind., middle school, students acted like they were fighting -- for at least seven minutes, because that's the length of a student-shot video that was posted for a short time on YouTube.

According to the South Bend Tribune, there's a good reason the teacher let the students roughhouse in class:

[T]he substitute lives in a local home for people with chronic mental illness. The residents have bedrooms, eat meals together and enter the community daily on their own. She moved into a home like this in 1999.

She says she was diagnosed with paranoia. At age 60, she also touts a master’s degree. She has experience teaching in the classroom ...

The sub never told the district about her mental illness, though she worked in South Bend schools for more than a decade. The district never asked. It fired the substitute after the YouTube video surfaced.

The student who shot the video -- most likely on a cell phone -- is suspended; the school principal wants him expelled. Cell phones are prohibited in middle school.