How many times have you chased drivers in your car because you thought they were driving in a bad manner or if you believed they were breaking a road law? Chasing a reckless driver is dangerous for trained police officers. Innocent people sometimes die because of such chases. The situation can be even more dangerous when the driver believes that the person chasing them might be trying to kill them, for example. How many times have you called the police because people in your neighbourhood left their garage doors open? I have called the police on several instances where I knew a crime was being committed. I have also stepped in on some occasions where there was domestic abuse happening. That is human instinct. Zimmerman went above and beyond what he had been advised to do: Police volunteer program coordinator Wendy Dorival said she met Zimmerman in September at a community neighborhood watch presentation. “I said, ‘If it’s someone you don’t recognize, call us. We’ll figure it out,’ ” Dorival said. “‘Observe from a safe location.’ There’s even a slide about not being vigilante police. I don’t know how many more times I can repeat it.” [Source] It's a pretty interesting article actually. It goes on to say that the local police actually encourage neighbourhood watch volunteers to not be armed. Then we look at the fact that the 911 dispatcher told him he did not need to chase or follow Martin. It seems he often disregards the advice of police. Which, as we see now, can be dangerous.