None of the knives will really be for self defense. If things get that bad, I lost already.

I just want a pocket knife for edc, and something in my bag for the unexpected at work.

Since I am in telecom, (even as a project manager) everyone has the ubiquitous Klein Splicer Kit.

http://www.kleintools.com/catalog/cable-splicers-knives/cable-splicers-kit-free-fall-snip

So this and a SAK farmer may have to be it. I am glad I asked. I assumed everyone was allowed a lock blade as they are safer than non-locking.

Thanks for the responses so far.

Oh, and No Mexico at all.