I get comments on my knife frequently. I work in a retail environment, in a small store, and we don't have a back area to check in shipments, so when a package shows up, I just pull out my knife at the register, and open that sucker up.
Due to a couple employess who have a bad habit of leaving the store boxcutters laying around, often with the blade out, I now control all box cutters, and they have to be signed out and in, by me, or the owner. Yet I still carry at least 2 knives a day. Everyone's gotten to the point where unless there's a big truck delivery and lots of boxes, they'll just bring anything needed cutting to me, even if I'm with a customer.
Knives are tools, and my ZT 0200 is a bigass tool, that gets seen by lots of anti weapon people being used as a tool all the time. I think I'd get fired if the owner knew I carried a gun at work also, but hey, she's a lesbian, so I stick to the don't ask, don't tell mantra the military used for so long.