I owned a pepper spray in cases that I need to take down someone quickly, and without inflicting serious injury. What’s more pepper sprays are legal to carry in our place. No need to mess around with costly weapons license. At first I never got into pepper sprays until I encountered a violent hobo and I thought that batoning him will lead to serious lawsuits. Even better, pepper sprays are highly inconspicuous. It is easy to conceal and carry, and it looks non-threatening (unless you sprayed it). Even knife fearing people in our office never give a darn about that ominous looking canister in my pocket. Yes it will never replace a firearm and you will need additional self defense training as a complement. But in certain cases pepper sprays are good enough for you.