If you heard lots of sirens — or even saw a Flight for Life helicopter — around 9 a.m. at Greenfield High School this morning, don't be alarmed.
The Greenfield police and fire departments were participating in a mock crash demonstration for students, showing them the dangers of texting and driving.
The presentation is being conducted by Froedtert Hospital.
Check out Greenfield Patch throughout the day for photos and videos of the simulation.