Yeah, I'm often the only one in an office, family gatherings, sometimes at the range(!) with a knife. But people sure do get used to people like us being useful, asking to open boxes, etc. after a bit.
New boss, who I still know 20 years on, got an impression of me 10 minutes into day 1, when no one could find the keys to the Very Important lateral file, because previous boss hadn't put them anywhere rational. I pulled out my Spyderco, slid between the gap in the drawers, and pulled up (with the back of the blade) on the lock bar (I knew this was not a very good cabinet, most won't let you do that) and unlocked it. Back to work we go.
That sort of utility gives you lots of leeway even when there is an "eek, a knife" employee around.
OT: Local hardware store has the Case... case still. Had a very complete Buck case (many expensive-for-the-80s and/or limited run knives, not every store had all of them) when I worked at the local hardware store in high school. I relatively drooled over the titanium (560) at the time but it was WAY out of my price range, partly as they were one of the very few products with no discounts.