It comes down to what works for you. Overkill is in the eyes of the beholder. In the 'stans, an EBR and a couple of AT4's would not be overkill.
I have opted for a range of response options. I carry a AI Stylus Kubaton for typing on my cell phone and minor attitude adjustments; a Spyderco Endura 4 for opening packages, cutting my lunch, and more serious attitude corrections; and a compact M1911 for the gravest extreme and better range. Oh, and a cell phone of course. I find that this response spectrum serves my purposes best. Only you can decide what works best for you.