A decorated EMT is being investigated for allegedly shooting several subordinates "for fun" with a BB gun in their Canarsie headquarters. A source tells the Post that Lt. Leonard Tiberi (pictured), an EMT since 1996, was fond of bringing his BB gun to work and shooting at soda bottles. But his superiors weren't too keen on Tiberi's trigger happiness, and he was ordered to leave the gun at home. Nevertheless, he packed heat again one night this month, allegedly choosing targets other than soda bottles, which, to be fair, can get pretty boring targets. The Post's source says, "That night, he took it a step further and shot at the employees a couple of times each as a joke." What a cut-up, that Tiberi! It's all fun and games until you shoot your coworker's eye out, but maybe he didn't see the harm of a little gunplay because his coworkers are all medics. Complicating matters, however, is that everyone Tiberi allegedly shot at were minorities, according to the unidentified source.