I think it is perfectly fine. It is your life and therefore it is your choice. I carry a wide array of weapons and some people I'm sure would consider it paranoid of me. Again, it is my life and safety and therefore my choice. I will often carry a pistol, knife, taser, and pepperspray all at once. While I don't carry a backup pistol, I still have a backup something and all of these tools certainly are useful in a variety of situations.