From Reason:

A college in Michigan thinks the best way for students and professors to defend themselves in the event of a mass shooting might be to throw hockey pucks at the gunman.

To that end, Oakland University’s faculty union purchased 800 pucks for professors and 1,700 for students, according to NPR. Oakland Police Chief Mark Gordon described the hockey pucks as a “spur-of-the-moment idea that seemed to have some merit to it.”