A pit bull named Big Boi began menacing George and Shellie Zimmerman in the fall of 2009. The first time the dog ran free and cornered Shellie in their gated community in Sanford, Florida, George called the owner to complain. The second time, Big Boi frightened his mother-in-law's dog. Zimmerman called Seminole County Animal Services and bought pepper spray. The third time he saw the dog on the loose, he called again. An officer came to the house, county records show...
By June 2011, Zimmerman's attention had shifted from a loose pit bull to a wave of robberies that rattled the community, called the Retreat at Twin Lakes. The homeowners association asked him to launch a neighborhood watch, and Zimmerman would begin to carry the Kel-Tec on his regular, dog-walking patrol - a violation of neighborhood watch guidelines but not a crime.
Read this entire article - it gives insight into the man that is George Zimmerman