Not hard to believe at all, unfortunately.
A couple of years ago at my daughter's elementary school, the principal had a meeting where she calmly explained that pointing your finger at someone and saying "bang" was the same as bringing a weapon to school, and would result in suspension or expulsion.
Anyone that can't tell the difference between kids playing and a real, tangible threat needs to be fired immediately from ANY position of influence.
WTF indeed. Zero tolerance needs to be stopped; in many cases it's ruining kids' lives.