If you ever needed a good reason to install a doorbell camera, this may be it.  A family in Fort Myers, Florida heard knocking at the front door and walked over to find out who was paying them a visit. Fortunately, they looked outside first before opening the door because they had two visitors on their front porch — a couple of angry alligators who were fighting. The combatants continued fighting for about 20 minutes before they separated and walked away.