Well it's not thinking of defense at all I'm talking about, but someone said they carry three knives and two guns with self defense in mind. Personally I wouldn't carry a firearm at all, certainly not TWO. I mean knives I can understand, they're tools they're useful for more than just shooting people and having a backup is helpful because knives do break they do chip and get dull. But I would never carry multiple knives with the thought in my head being that I have one main knife, a backup knife and a last ditch effort. I've never had a knife break on me when I wasn't trying to break it so I can't relate to that, sometimes I carry my folder and a victorinox just because they have tweezers on them.
I would also like to say, in my opinion saying a mafia hitman murderer is your reason for going to the extremes for self defense is stupid. If anyone should make you afraid it's the thousands of desperate people out there, drunks and druggies that do stupid things.
If you're going to be this afraid of just walking down the street or going to the market why not just live in a box for the rest of your life.