I voted no, but I have been thinking about getting one. Just don't know where to start.
A nice 2.5-3.5" folder is a good place to start for an EDC. A lot of people prefer a fixed blade for defensive purposes. A 3-4" blade can get you into most target areas. Brad or the knife lady can sort you out. IMO a nice 3" fixed is a great addition to any lady's PD gear.