I my case scared of too many good folks all around me who I don't trust with their lethal force close by.
Then worry about all the drivers around you, statistically you are far more likely to be killed by one of those folks behind the wheel of a vehicle.
All the folks I know that have guns for self protection are not scared at all, its the folks without the means to protect themselves that are afraid.
I do agree with the other poster that a gun has to be the *last resort*, not the first one when considering your security. I still think a 'barky' dog is one of the most effective deterrents.