Off duty cop sprays pepper spray into crowd

It's becoming more obvious why some countries ban this stuff. If trained police can't figure out the right time and wrong time to use it, maybe it's time to stop equipping them with it. It doesn't matter if it was a single "puff" or not, it's not to be used in such circumstances. What kind of an idiot thinks this is the right thing to do?
NBC News:

Kinston (NC) police are disputing accounts of the incident, telling NBC News that they fired a single "puff" of pepper spray when a large group of people tried to grab products before Walmart employees were finished putting the items on display.

An officer sprayed "a puff" of pepper spray in the air to have the crowd "regain composure," police said. They told NBC News that none of the substance was sprayed into anyone's eyes or face and that no one requested medical attention.

Police confirmed that one man was arrested but wouldn't confirm his identity as reported in local news accounts.