Who comes up with ideas like these?

Armed nonuniformed men invade an Oregon school to test the staff's readiness for a hostage situation:

Two masked men wearing hoodies and wielding handguns burst into the Pine Eagle Charter School in this tiny rural community on Friday. Students were at home for an in-service day, so the gunmen headed into a meeting room full of teachers and opened fire.

Someone figured out in a few seconds that the bullets were not drawing blood because they were blanks and the exercise was a drill, designed to test Pine Eagle's preparation for an assault by "active shooters" who were, in reality, members of the school staff. But those few seconds left everybody plenty scared.

Principal Cammie DeCastro said it became clear very quickly just how many of the school's 15 teachers would have survived. The answer: "Not many," she said. 

The Reddit thread discusses what might have happened had one of the "victim" teachers responded with lethal force.

Meanwhile, in Virginia plainclothes police officers try to apprehend a female student.  She resists...

On April 11, Elizabeth Daly bought a carton of sparkling water, cookie dough and ice cream at a Charlottesville store. She drove off when she was confronted by plainclothes ABC agents after they suspected the 20-year-old of purchasing beer... The woman was charged with two felonies after she attempted to flee the agents.

They later dropped the charges, but had she run over them while driving away, I would have given her the benefit of doubt for fleeing a possible attempted rape/carjacking.